71191880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 164721600

約数和(自身を除く): 93529720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 163, 179, 244, 305, 326, 358, 488, 610, 652, 716, 815, 895, 1220, 1304, 1432, 1630, 1790, 2440, 3260, 3580, 6520, 7160, 9943, 10919, 19886, 21838, 29177, 39772, 43676, 49715, 54595, 58354, 79544, 87352, 99430, 109190, 116708, 145885, 198860, 218380, 233416, 291770, 397720, 436760, 583540, 1167080, 1779797, 3559594, 7119188, 8898985, 14238376, 17797970, 35595940, 71191880]

約数ペア:

[(1, 71191880), (2, 35595940), (4, 17797970), (5, 14238376), (8, 8898985), (10, 7119188), (20, 3559594), (40, 1779797), (61, 1167080), (122, 583540), (163, 436760), (179, 397720), (244, 291770), (305, 233416), (326, 218380), (358, 198860), (488, 145885), (610, 116708), (652, 109190), (716, 99430), (815, 87352), (895, 79544), (1220, 58354), (1304, 54595), (1432, 49715), (1630, 43676), (1790, 39772), (2440, 29177), (3260, 21838), (3580, 19886), (6520, 10919), (7160, 9943)]