15698910820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1\times {\mathrm{20899}}^1$

素因数の和:21025

約数の個数: 72

約数和(自身を含む): 34950484800

約数和(自身を除く): 19251573980

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 71, 92, 115, 142, 230, 284, 355, 460, 529, 710, 1058, 1420, 1633, 2116, 2645, 3266, 5290, 6532, 8165, 10580, 16330, 20899, 32660, 37559, 41798, 75118, 83596, 104495, 150236, 187795, 208990, 375590, 417980, 480677, 751180, 961354, 1483829, 1922708, 2403385, 2967658, 4806770, 5935316, 7419145, 9613540, 11055571, 14838290, 22111142, 29676580, 34128067, 44222284, 55277855, 68256134, 110555710, 136512268, 170640335, 221111420, 341280670, 682561340, 784945541, 1569891082, 3139782164, 3924727705, 7849455410, 15698910820]

約数ペア:

[(1, 15698910820), (2, 7849455410), (4, 3924727705), (5, 3139782164), (10, 1569891082), (20, 784945541), (23, 682561340), (46, 341280670), (71, 221111420), (92, 170640335), (115, 136512268), (142, 110555710), (230, 68256134), (284, 55277855), (355, 44222284), (460, 34128067), (529, 29676580), (710, 22111142), (1058, 14838290), (1420, 11055571), (1633, 9613540), (2116, 7419145), (2645, 5935316), (3266, 4806770), (5290, 2967658), (6532, 2403385), (8165, 1922708), (10580, 1483829), (16330, 961354), (20899, 751180), (32660, 480677), (37559, 417980), (41798, 375590), (75118, 208990), (83596, 187795), (104495, 150236)]