66871640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{421}}^1$

素因数の和:481

約数の個数: 96

約数和(自身を含む): 173644560

約数和(自身を除く): 106772920

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 361, 380, 418, 421, 440, 722, 760, 836, 842, 1045, 1444, 1672, 1684, 1805, 2090, 2105, 2888, 3368, 3610, 3971, 4180, 4210, 4631, 7220, 7942, 7999, 8360, 8420, 9262, 14440, 15884, 15998, 16840, 18524, 19855, 23155, 31768, 31996, 37048, 39710, 39995, 46310, 63992, 79420, 79990, 87989, 92620, 151981, 158840, 159980, 175978, 185240, 303962, 319960, 351956, 439945, 607924, 703912, 759905, 879890, 1215848, 1519810, 1671791, 1759780, 3039620, 3343582, 3519560, 6079240, 6687164, 8358955, 13374328, 16717910, 33435820, 66871640]

約数ペア:

[(1, 66871640), (2, 33435820), (4, 16717910), (5, 13374328), (8, 8358955), (10, 6687164), (11, 6079240), (19, 3519560), (20, 3343582), (22, 3039620), (38, 1759780), (40, 1671791), (44, 1519810), (55, 1215848), (76, 879890), (88, 759905), (95, 703912), (110, 607924), (152, 439945), (190, 351956), (209, 319960), (220, 303962), (361, 185240), (380, 175978), (418, 159980), (421, 158840), (440, 151981), (722, 92620), (760, 87989), (836, 79990), (842, 79420), (1045, 63992), (1444, 46310), (1672, 39995), (1684, 39710), (1805, 37048), (2090, 31996), (2105, 31768), (2888, 23155), (3368, 19855), (3610, 18524), (3971, 16840), (4180, 15998), (4210, 15884), (4631, 14440), (7220, 9262), (7942, 8420), (7999, 8360)]