16720051920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{2473}}^1$

素因数の和:2710

約数の個数: 320

約数和(自身を含む): 61227581184

約数和(自身を除く): 44507529264

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 16, 20, 22, 24, 26, 30, 33, 39, 40, 44, 48, 52, 55, 60, 65, 66, 78, 80, 88, 104, 110, 120, 130, 132, 143, 156, 165, 176, 195, 197, 208, 220, 240, 260, 264, 286, 312, 330, 390, 394, 429, 440, 520, 528, 572, 591, 624, 660, 715, 780, 788, 858, 880, 985, 1040, 1144, 1182, 1320, 1430, 1560, 1576, 1716, 1970, 2145, 2167, 2288, 2364, 2473, 2561, 2640, 2860, 2955, 3120, 3152, 3432, 3940, 4290, 4334, 4728, 4946, 5122, 5720, 5910, 6501, 6864, 7419, 7683, 7880, 8580, 8668, 9456, 9892, 10244, 10835, 11440, 11820, 12365, 12805, 13002, 14838, 15366, 15760, 17160, 17336, 19784, 20488, 21670, 23640, 24730, 25610, 26004, 27203, 28171, 29676, 30732, 32149, 32505, 34320, 34672, 37095, 38415, 39568, 40976, 43340, 47280, 49460, 51220, 52008, 54406, 56342, 59352, 61464, 64298, 65010, 74190, 76830, 81609, 84513, 86680, 96447, 98920, 102440, 104016, 108812, 112684, 118704, 122928, 128596, 130020, 136015, 140855, 148380, 153660, 160745, 163218, 169026, 173360, 192894, 197840, 204880, 217624, 225368, 257192, 260040, 272030, 281710, 296760, 307320, 321490, 326436, 338052, 353639, 385788, 408045, 422565, 435248, 450736, 482235, 487181, 514384, 520080, 544060, 563420, 593520, 614640, 642980, 652872, 676104, 707278, 771576, 816090, 845130, 964470, 974362, 1060917, 1088120, 1126840, 1285960, 1305744, 1352208, 1414556, 1461543, 1543152, 1632180, 1690260, 1768195, 1928940, 1948724, 2121834, 2176240, 2253680, 2435905, 2571920, 2829112, 2923086, 3264360, 3380520, 3536390, 3857880, 3897448, 4243668, 4871810, 5304585, 5358991, 5658224, 5846172, 6333353, 6528720, 6761040, 7072780, 7307715, 7715760, 7794896, 8487336, 9743620, 10609170, 10717982, 11692344, 12666706, 14145560, 14615430, 16076973, 16974672, 19000059, 19487240, 21218340, 21435964, 23384688, 25333412, 26794955, 28291120, 29230860, 31666765, 32153946, 38000118, 38974480, 42436680, 42871928, 50666824, 53589910, 58461720, 63333530, 64307892, 69666883, 76000236, 80384865, 84873360, 85743856, 95000295, 101333648, 107179820, 116923440, 126667060, 128615784, 139333766, 152000472, 160769730, 190000590, 209000649, 214359640, 253334120, 257231568, 278667532, 304000944, 321539460, 348334415, 380001180, 418001298, 428719280, 506668240, 557335064, 643078920, 696668830, 760002360, 836002596, 1045003245, 1114670128, 1286157840, 1393337660, 1520004720, 1672005192, 2090006490, 2786675320, 3344010384, 4180012980, 5573350640, 8360025960, 16720051920]

約数ペア:

[(1, 16720051920), (2, 8360025960), (3, 5573350640), (4, 4180012980), (5, 3344010384), (6, 2786675320), (8, 2090006490), (10, 1672005192), (11, 1520004720), (12, 1393337660), (13, 1286157840), (15, 1114670128), (16, 1045003245), (20, 836002596), (22, 760002360), (24, 696668830), (26, 643078920), (30, 557335064), (33, 506668240), (39, 428719280), (40, 418001298), (44, 380001180), (48, 348334415), (52, 321539460), (55, 304000944), (60, 278667532), (65, 257231568), (66, 253334120), (78, 214359640), (80, 209000649), (88, 190000590), (104, 160769730), (110, 152000472), (120, 139333766), (130, 128615784), (132, 126667060), (143, 116923440), (156, 107179820), (165, 101333648), (176, 95000295), (195, 85743856), (197, 84873360), (208, 80384865), (220, 76000236), (240, 69666883), (260, 64307892), (264, 63333530), (286, 58461720), (312, 53589910), (330, 50666824), (390, 42871928), (394, 42436680), (429, 38974480), (440, 38000118), (520, 32153946), (528, 31666765), (572, 29230860), (591, 28291120), (624, 26794955), (660, 25333412), (715, 23384688), (780, 21435964), (788, 21218340), (858, 19487240), (880, 19000059), (985, 16974672), (1040, 16076973), (1144, 14615430), (1182, 14145560), (1320, 12666706), (1430, 11692344), (1560, 10717982), (1576, 10609170), (1716, 9743620), (1970, 8487336), (2145, 7794896), (2167, 7715760), (2288, 7307715), (2364, 7072780), (2473, 6761040), (2561, 6528720), (2640, 6333353), (2860, 5846172), (2955, 5658224), (3120, 5358991), (3152, 5304585), (3432, 4871810), (3940, 4243668), (4290, 3897448), (4334, 3857880), (4728, 3536390), (4946, 3380520), (5122, 3264360), (5720, 2923086), (5910, 2829112), (6501, 2571920), (6864, 2435905), (7419, 2253680), (7683, 2176240), (7880, 2121834), (8580, 1948724), (8668, 1928940), (9456, 1768195), (9892, 1690260), (10244, 1632180), (10835, 1543152), (11440, 1461543), (11820, 1414556), (12365, 1352208), (12805, 1305744), (13002, 1285960), (14838, 1126840), (15366, 1088120), (15760, 1060917), (17160, 974362), (17336, 964470), (19784, 845130), (20488, 816090), (21670, 771576), (23640, 707278), (24730, 676104), (25610, 652872), (26004, 642980), (27203, 614640), (28171, 593520), (29676, 563420), (30732, 544060), (32149, 520080), (32505, 514384), (34320, 487181), (34672, 482235), (37095, 450736), (38415, 435248), (39568, 422565), (40976, 408045), (43340, 385788), (47280, 353639), (49460, 338052), (51220, 326436), (52008, 321490), (54406, 307320), (56342, 296760), (59352, 281710), (61464, 272030), (64298, 260040), (65010, 257192), (74190, 225368), (76830, 217624), (81609, 204880), (84513, 197840), (86680, 192894), (96447, 173360), (98920, 169026), (102440, 163218), (104016, 160745), (108812, 153660), (112684, 148380), (118704, 140855), (122928, 136015), (128596, 130020)]