15903020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3917}}^1$

素因数の和:3962

約数の個数: 48

約数和(自身を含む): 39493440

約数和(自身を除く): 23590420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 3917, 4060, 7834, 15668, 19585, 27419, 39170, 54838, 78340, 109676, 113593, 137095, 227186, 274190, 454372, 548380, 567965, 795151, 1135930, 1590302, 2271860, 3180604, 3975755, 7951510, 15903020]

約数ペア:

[(1, 15903020), (2, 7951510), (4, 3975755), (5, 3180604), (7, 2271860), (10, 1590302), (14, 1135930), (20, 795151), (28, 567965), (29, 548380), (35, 454372), (58, 274190), (70, 227186), (116, 137095), (140, 113593), (145, 109676), (203, 78340), (290, 54838), (406, 39170), (580, 27419), (812, 19585), (1015, 15668), (2030, 7834), (3917, 4060)]