171681720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1$

素因数の和:418

約数の個数: 256

約数和(自身を含む): 641433600

約数和(自身を除く): 469751880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 31, 35, 38, 40, 42, 56, 57, 60, 62, 70, 76, 84, 93, 95, 105, 114, 120, 124, 133, 140, 152, 155, 168, 186, 190, 210, 217, 228, 248, 266, 280, 285, 310, 347, 372, 380, 399, 420, 434, 456, 465, 532, 570, 589, 620, 651, 665, 694, 744, 760, 798, 840, 868, 930, 1041, 1064, 1085, 1140, 1178, 1240, 1302, 1330, 1388, 1596, 1735, 1736, 1767, 1860, 1995, 2082, 2170, 2280, 2356, 2429, 2604, 2660, 2776, 2945, 3192, 3255, 3470, 3534, 3720, 3990, 4123, 4164, 4340, 4712, 4858, 5205, 5208, 5320, 5890, 6510, 6593, 6940, 7068, 7287, 7980, 8246, 8328, 8680, 8835, 9716, 10410, 10757, 11780, 12145, 12369, 13020, 13186, 13880, 14136, 14574, 15960, 16492, 17670, 19432, 19779, 20615, 20820, 21514, 23560, 24290, 24738, 26040, 26372, 29148, 32271, 32965, 32984, 35340, 36435, 39558, 41230, 41640, 43028, 46151, 48580, 49476, 52744, 53785, 58296, 61845, 64542, 65930, 70680, 72870, 75299, 79116, 82460, 86056, 92302, 97160, 98895, 98952, 107570, 123690, 129084, 131860, 138453, 145740, 150598, 158232, 161355, 164920, 184604, 197790, 204383, 215140, 225897, 230755, 247380, 258168, 263720, 276906, 291480, 301196, 322710, 369208, 376495, 395580, 408766, 430280, 451794, 461510, 494760, 553812, 602392, 613149, 645420, 692265, 752990, 791160, 817532, 903588, 923020, 1021915, 1107624, 1129485, 1226298, 1290840, 1384530, 1430681, 1505980, 1635064, 1807176, 1846040, 2043830, 2258970, 2452596, 2769060, 2861362, 3011960, 3065745, 4087660, 4292043, 4517940, 4905192, 5538120, 5722724, 6131490, 7153405, 8175320, 8584086, 9035880, 11445448, 12262980, 14306810, 17168172, 21460215, 24525960, 28613620, 34336344, 42920430, 57227240, 85840860, 171681720]

約数ペア:

[(1, 171681720), (2, 85840860), (3, 57227240), (4, 42920430), (5, 34336344), (6, 28613620), (7, 24525960), (8, 21460215), (10, 17168172), (12, 14306810), (14, 12262980), (15, 11445448), (19, 9035880), (20, 8584086), (21, 8175320), (24, 7153405), (28, 6131490), (30, 5722724), (31, 5538120), (35, 4905192), (38, 4517940), (40, 4292043), (42, 4087660), (56, 3065745), (57, 3011960), (60, 2861362), (62, 2769060), (70, 2452596), (76, 2258970), (84, 2043830), (93, 1846040), (95, 1807176), (105, 1635064), (114, 1505980), (120, 1430681), (124, 1384530), (133, 1290840), (140, 1226298), (152, 1129485), (155, 1107624), (168, 1021915), (186, 923020), (190, 903588), (210, 817532), (217, 791160), (228, 752990), (248, 692265), (266, 645420), (280, 613149), (285, 602392), (310, 553812), (347, 494760), (372, 461510), (380, 451794), (399, 430280), (420, 408766), (434, 395580), (456, 376495), (465, 369208), (532, 322710), (570, 301196), (589, 291480), (620, 276906), (651, 263720), (665, 258168), (694, 247380), (744, 230755), (760, 225897), (798, 215140), (840, 204383), (868, 197790), (930, 184604), (1041, 164920), (1064, 161355), (1085, 158232), (1140, 150598), (1178, 145740), (1240, 138453), (1302, 131860), (1330, 129084), (1388, 123690), (1596, 107570), (1735, 98952), (1736, 98895), (1767, 97160), (1860, 92302), (1995, 86056), (2082, 82460), (2170, 79116), (2280, 75299), (2356, 72870), (2429, 70680), (2604, 65930), (2660, 64542), (2776, 61845), (2945, 58296), (3192, 53785), (3255, 52744), (3470, 49476), (3534, 48580), (3720, 46151), (3990, 43028), (4123, 41640), (4164, 41230), (4340, 39558), (4712, 36435), (4858, 35340), (5205, 32984), (5208, 32965), (5320, 32271), (5890, 29148), (6510, 26372), (6593, 26040), (6940, 24738), (7068, 24290), (7287, 23560), (7980, 21514), (8246, 20820), (8328, 20615), (8680, 19779), (8835, 19432), (9716, 17670), (10410, 16492), (10757, 15960), (11780, 14574), (12145, 14136), (12369, 13880), (13020, 13186)]