78886840

素因数分解:

$2^3\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{1579}}^1$

素因数の和:2839

約数の個数: 32

約数和(自身を含む): 177750000

約数和(自身を除く): 98863160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1249, 1579, 2498, 3158, 4996, 6245, 6316, 7895, 9992, 12490, 12632, 15790, 24980, 31580, 49960, 63160, 1972171, 3944342, 7888684, 9860855, 15777368, 19721710, 39443420, 78886840]

約数ペア:

[(1, 78886840), (2, 39443420), (4, 19721710), (5, 15777368), (8, 9860855), (10, 7888684), (20, 3944342), (40, 1972171), (1249, 63160), (1579, 49960), (2498, 31580), (3158, 24980), (4996, 15790), (6245, 12632), (6316, 12490), (7895, 9992)]