131231640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:329

約数の個数: 128

約数和(自身を含む): 405504000

約数和(自身を除く): 274272360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 109, 120, 127, 158, 218, 237, 254, 316, 327, 381, 395, 436, 474, 508, 545, 632, 635, 654, 762, 790, 872, 948, 1016, 1090, 1185, 1270, 1308, 1524, 1580, 1635, 1896, 1905, 2180, 2370, 2540, 2616, 3048, 3160, 3270, 3810, 4360, 4740, 5080, 6540, 7620, 8611, 9480, 10033, 13080, 13843, 15240, 17222, 20066, 25833, 27686, 30099, 34444, 40132, 41529, 43055, 50165, 51666, 55372, 60198, 68888, 69215, 80264, 83058, 86110, 100330, 103332, 110744, 120396, 129165, 138430, 150495, 166116, 172220, 200660, 206664, 207645, 240792, 258330, 276860, 300990, 332232, 344440, 401320, 415290, 516660, 553720, 601980, 830580, 1033320, 1093597, 1203960, 1661160, 2187194, 3280791, 4374388, 5467985, 6561582, 8748776, 10935970, 13123164, 16403955, 21871940, 26246328, 32807910, 43743880, 65615820, 131231640]

約数ペア:

[(1, 131231640), (2, 65615820), (3, 43743880), (4, 32807910), (5, 26246328), (6, 21871940), (8, 16403955), (10, 13123164), (12, 10935970), (15, 8748776), (20, 6561582), (24, 5467985), (30, 4374388), (40, 3280791), (60, 2187194), (79, 1661160), (109, 1203960), (120, 1093597), (127, 1033320), (158, 830580), (218, 601980), (237, 553720), (254, 516660), (316, 415290), (327, 401320), (381, 344440), (395, 332232), (436, 300990), (474, 276860), (508, 258330), (545, 240792), (632, 207645), (635, 206664), (654, 200660), (762, 172220), (790, 166116), (872, 150495), (948, 138430), (1016, 129165), (1090, 120396), (1185, 110744), (1270, 103332), (1308, 100330), (1524, 86110), (1580, 83058), (1635, 80264), (1896, 69215), (1905, 68888), (2180, 60198), (2370, 55372), (2540, 51666), (2616, 50165), (3048, 43055), (3160, 41529), (3270, 40132), (3810, 34444), (4360, 30099), (4740, 27686), (5080, 25833), (6540, 20066), (7620, 17222), (8611, 15240), (9480, 13843), (10033, 13080)]