80814680

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{6581}}^1$

素因数の和:6899

約数の個数: 32

約数和(自身を含む): 182453040

約数和(自身を除く): 101638360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 6140, 6581, 12280, 13162, 26324, 32905, 52648, 65810, 131620, 263240, 2020367, 4040734, 8081468, 10101835, 16162936, 20203670, 40407340, 80814680]

約数ペア:

[(1, 80814680), (2, 40407340), (4, 20203670), (5, 16162936), (8, 10101835), (10, 8081468), (20, 4040734), (40, 2020367), (307, 263240), (614, 131620), (1228, 65810), (1535, 52648), (2456, 32905), (3070, 26324), (6140, 13162), (6581, 12280)]