31981560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:142

約数の個数: 192

約数和(自身を含む): 110678400

約数和(自身を除く): 78696840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 57, 60, 65, 76, 78, 83, 95, 104, 114, 120, 130, 152, 156, 166, 169, 190, 195, 228, 247, 249, 260, 285, 312, 332, 338, 380, 390, 415, 456, 494, 498, 507, 520, 570, 664, 676, 741, 760, 780, 830, 845, 988, 996, 1014, 1079, 1140, 1235, 1245, 1352, 1482, 1560, 1577, 1660, 1690, 1976, 1992, 2028, 2158, 2280, 2470, 2490, 2535, 2964, 3154, 3211, 3237, 3320, 3380, 3705, 4056, 4316, 4731, 4940, 4980, 5070, 5395, 5928, 6308, 6422, 6474, 6760, 7410, 7885, 8632, 9462, 9633, 9880, 9960, 10140, 10790, 12616, 12844, 12948, 14027, 14820, 15770, 16055, 16185, 18924, 19266, 20280, 20501, 21580, 23655, 25688, 25896, 28054, 29640, 31540, 32110, 32370, 37848, 38532, 41002, 42081, 43160, 47310, 48165, 56108, 61503, 63080, 64220, 64740, 70135, 77064, 82004, 84162, 94620, 96330, 102505, 112216, 123006, 128440, 129480, 140270, 164008, 168324, 189240, 192660, 205010, 210405, 246012, 266513, 280540, 307515, 336648, 385320, 410020, 420810, 492024, 533026, 561080, 615030, 799539, 820040, 841620, 1066052, 1230060, 1332565, 1599078, 1683240, 2132104, 2460120, 2665130, 3198156, 3997695, 5330260, 6396312, 7995390, 10660520, 15990780, 31981560]

約数ペア:

[(1, 31981560), (2, 15990780), (3, 10660520), (4, 7995390), (5, 6396312), (6, 5330260), (8, 3997695), (10, 3198156), (12, 2665130), (13, 2460120), (15, 2132104), (19, 1683240), (20, 1599078), (24, 1332565), (26, 1230060), (30, 1066052), (38, 841620), (39, 820040), (40, 799539), (52, 615030), (57, 561080), (60, 533026), (65, 492024), (76, 420810), (78, 410020), (83, 385320), (95, 336648), (104, 307515), (114, 280540), (120, 266513), (130, 246012), (152, 210405), (156, 205010), (166, 192660), (169, 189240), (190, 168324), (195, 164008), (228, 140270), (247, 129480), (249, 128440), (260, 123006), (285, 112216), (312, 102505), (332, 96330), (338, 94620), (380, 84162), (390, 82004), (415, 77064), (456, 70135), (494, 64740), (498, 64220), (507, 63080), (520, 61503), (570, 56108), (664, 48165), (676, 47310), (741, 43160), (760, 42081), (780, 41002), (830, 38532), (845, 37848), (988, 32370), (996, 32110), (1014, 31540), (1079, 29640), (1140, 28054), (1235, 25896), (1245, 25688), (1352, 23655), (1482, 21580), (1560, 20501), (1577, 20280), (1660, 19266), (1690, 18924), (1976, 16185), (1992, 16055), (2028, 15770), (2158, 14820), (2280, 14027), (2470, 12948), (2490, 12844), (2535, 12616), (2964, 10790), (3154, 10140), (3211, 9960), (3237, 9880), (3320, 9633), (3380, 9462), (3705, 8632), (4056, 7885), (4316, 7410), (4731, 6760), (4940, 6474), (4980, 6422), (5070, 6308), (5395, 5928)]