8423120

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{499}}^1$

素因数の和:723

約数の個数: 40

約数和(自身を含む): 19716000

約数和(自身を除く): 11292880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 499, 844, 998, 1055, 1688, 1996, 2110, 2495, 3376, 3992, 4220, 4990, 7984, 8440, 9980, 16880, 19960, 39920, 105289, 210578, 421156, 526445, 842312, 1052890, 1684624, 2105780, 4211560, 8423120]

約数ペア:

[(1, 8423120), (2, 4211560), (4, 2105780), (5, 1684624), (8, 1052890), (10, 842312), (16, 526445), (20, 421156), (40, 210578), (80, 105289), (211, 39920), (422, 19960), (499, 16880), (844, 9980), (998, 8440), (1055, 7984), (1688, 4990), (1996, 4220), (2110, 3992), (2495, 3376)]