15831920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1171}}^1$

素因数の和:1210

約数の個数: 60

約数和(自身を含む): 39892536

約数和(自身を除く): 24060616

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1171, 1352, 1690, 2342, 2704, 3380, 4684, 5855, 6760, 9368, 11710, 13520, 15223, 18736, 23420, 30446, 46840, 60892, 76115, 93680, 121784, 152230, 197899, 243568, 304460, 395798, 608920, 791596, 989495, 1217840, 1583192, 1978990, 3166384, 3957980, 7915960, 15831920]

約数ペア:

[(1, 15831920), (2, 7915960), (4, 3957980), (5, 3166384), (8, 1978990), (10, 1583192), (13, 1217840), (16, 989495), (20, 791596), (26, 608920), (40, 395798), (52, 304460), (65, 243568), (80, 197899), (104, 152230), (130, 121784), (169, 93680), (208, 76115), (260, 60892), (338, 46840), (520, 30446), (676, 23420), (845, 18736), (1040, 15223), (1171, 13520), (1352, 11710), (1690, 9368), (2342, 6760), (2704, 5855), (3380, 4684)]