19720878240

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{541}}^1\times {\mathrm{571}}^1$

素因数の和:1156

約数の個数: 384

約数和(自身を含む): 75001006080

約数和(自身を除く): 55280127840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 96, 105, 112, 114, 120, 133, 140, 152, 160, 168, 190, 210, 224, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 480, 532, 541, 560, 570, 571, 608, 665, 672, 760, 798, 840, 912, 1064, 1082, 1120, 1140, 1142, 1330, 1520, 1596, 1623, 1680, 1713, 1824, 1995, 2128, 2164, 2280, 2284, 2660, 2705, 2855, 3040, 3192, 3246, 3360, 3426, 3787, 3990, 3997, 4256, 4328, 4560, 4568, 5320, 5410, 5710, 6384, 6492, 6852, 7574, 7980, 7994, 8115, 8565, 8656, 9120, 9136, 10279, 10640, 10820, 10849, 11361, 11420, 11991, 12768, 12984, 13704, 15148, 15960, 15988, 16230, 17130, 17312, 18272, 18935, 19985, 20558, 21280, 21640, 21698, 22722, 22840, 23982, 25968, 27408, 30296, 30837, 31920, 31976, 32460, 32547, 34260, 37870, 39970, 41116, 43280, 43396, 45444, 45680, 47964, 51395, 51936, 54245, 54816, 56805, 59955, 60592, 61674, 63840, 63952, 64920, 65094, 68520, 71953, 75740, 75943, 79940, 82232, 86560, 86792, 90888, 91360, 95928, 102790, 108490, 113610, 119910, 121184, 123348, 127904, 129840, 130188, 137040, 143906, 151480, 151886, 154185, 159880, 162735, 164464, 173584, 181776, 191856, 205580, 215859, 216980, 227220, 227829, 239820, 246696, 259680, 260376, 274080, 287812, 302960, 303772, 308370, 308911, 319760, 325470, 328928, 347168, 359765, 363552, 379715, 383712, 411160, 431718, 433960, 454440, 455658, 479640, 493392, 520752, 575624, 605920, 607544, 616740, 617822, 639520, 650940, 719530, 759430, 822320, 863436, 867920, 908880, 911316, 926733, 959280, 986784, 1041504, 1079295, 1139145, 1151248, 1215088, 1233480, 1235644, 1301880, 1439060, 1518860, 1544555, 1644640, 1726872, 1735840, 1817760, 1822632, 1853466, 1918560, 2158590, 2162377, 2278290, 2302496, 2430176, 2466960, 2471288, 2603760, 2878120, 3037720, 3089110, 3453744, 3645264, 3706932, 4317180, 4324754, 4556580, 4633665, 4933920, 4942576, 5207520, 5756240, 5869309, 6075440, 6178220, 6487131, 6907488, 7290528, 7413864, 8634360, 8649508, 9113160, 9267330, 9885152, 10811885, 11512480, 11738618, 12150880, 12356440, 12974262, 14827728, 17268720, 17299016, 17607927, 18226320, 18534660, 21623770, 23477236, 24712880, 25948524, 29346545, 29655456, 32435655, 34537440, 34598032, 35215854, 36452640, 37069320, 41085163, 43247540, 46954472, 49425760, 51897048, 58693090, 64871310, 69196064, 70431708, 74138640, 82170326, 86495080, 88039635, 93908944, 103794096, 117386180, 123255489, 129742620, 140863416, 148277280, 164340652, 172990160, 176079270, 187817888, 205425815, 207588192, 234772360, 246510978, 259485240, 281726832, 328681304, 345980320, 352158540, 410851630, 469544720, 493021956, 518970480, 563453664, 616277445, 657362608, 704317080, 821703260, 939089440, 986043912, 1037940960, 1232554890, 1314725216, 1408634160, 1643406520, 1972087824, 2465109780, 2817268320, 3286813040, 3944175648, 4930219560, 6573626080, 9860439120, 19720878240]

約数ペア:

[(1, 19720878240), (2, 9860439120), (3, 6573626080), (4, 4930219560), (5, 3944175648), (6, 3286813040), (7, 2817268320), (8, 2465109780), (10, 1972087824), (12, 1643406520), (14, 1408634160), (15, 1314725216), (16, 1232554890), (19, 1037940960), (20, 986043912), (21, 939089440), (24, 821703260), (28, 704317080), (30, 657362608), (32, 616277445), (35, 563453664), (38, 518970480), (40, 493021956), (42, 469544720), (48, 410851630), (56, 352158540), (57, 345980320), (60, 328681304), (70, 281726832), (76, 259485240), (80, 246510978), (84, 234772360), (95, 207588192), (96, 205425815), (105, 187817888), (112, 176079270), (114, 172990160), (120, 164340652), (133, 148277280), (140, 140863416), (152, 129742620), (160, 123255489), (168, 117386180), (190, 103794096), (210, 93908944), (224, 88039635), (228, 86495080), (240, 82170326), (266, 74138640), (280, 70431708), (285, 69196064), (304, 64871310), (336, 58693090), (380, 51897048), (399, 49425760), (420, 46954472), (456, 43247540), (480, 41085163), (532, 37069320), (541, 36452640), (560, 35215854), (570, 34598032), (571, 34537440), (608, 32435655), (665, 29655456), (672, 29346545), (760, 25948524), (798, 24712880), (840, 23477236), (912, 21623770), (1064, 18534660), (1082, 18226320), (1120, 17607927), (1140, 17299016), (1142, 17268720), (1330, 14827728), (1520, 12974262), (1596, 12356440), (1623, 12150880), (1680, 11738618), (1713, 11512480), (1824, 10811885), (1995, 9885152), (2128, 9267330), (2164, 9113160), (2280, 8649508), (2284, 8634360), (2660, 7413864), (2705, 7290528), (2855, 6907488), (3040, 6487131), (3192, 6178220), (3246, 6075440), (3360, 5869309), (3426, 5756240), (3787, 5207520), (3990, 4942576), (3997, 4933920), (4256, 4633665), (4328, 4556580), (4560, 4324754), (4568, 4317180), (5320, 3706932), (5410, 3645264), (5710, 3453744), (6384, 3089110), (6492, 3037720), (6852, 2878120), (7574, 2603760), (7980, 2471288), (7994, 2466960), (8115, 2430176), (8565, 2302496), (8656, 2278290), (9120, 2162377), (9136, 2158590), (10279, 1918560), (10640, 1853466), (10820, 1822632), (10849, 1817760), (11361, 1735840), (11420, 1726872), (11991, 1644640), (12768, 1544555), (12984, 1518860), (13704, 1439060), (15148, 1301880), (15960, 1235644), (15988, 1233480), (16230, 1215088), (17130, 1151248), (17312, 1139145), (18272, 1079295), (18935, 1041504), (19985, 986784), (20558, 959280), (21280, 926733), (21640, 911316), (21698, 908880), (22722, 867920), (22840, 863436), (23982, 822320), (25968, 759430), (27408, 719530), (30296, 650940), (30837, 639520), (31920, 617822), (31976, 616740), (32460, 607544), (32547, 605920), (34260, 575624), (37870, 520752), (39970, 493392), (41116, 479640), (43280, 455658), (43396, 454440), (45444, 433960), (45680, 431718), (47964, 411160), (51395, 383712), (51936, 379715), (54245, 363552), (54816, 359765), (56805, 347168), (59955, 328928), (60592, 325470), (61674, 319760), (63840, 308911), (63952, 308370), (64920, 303772), (65094, 302960), (68520, 287812), (71953, 274080), (75740, 260376), (75943, 259680), (79940, 246696), (82232, 239820), (86560, 227829), (86792, 227220), (90888, 216980), (91360, 215859), (95928, 205580), (102790, 191856), (108490, 181776), (113610, 173584), (119910, 164464), (121184, 162735), (123348, 159880), (127904, 154185), (129840, 151886), (130188, 151480), (137040, 143906)]