1256840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2417}}^1$

素因数の和:2441

約数の個数: 32

約数和(自身を含む): 3046680

約数和(自身を除く): 1789840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2417, 4834, 9668, 12085, 19336, 24170, 31421, 48340, 62842, 96680, 125684, 157105, 251368, 314210, 628420, 1256840]

約数ペア:

[(1, 1256840), (2, 628420), (4, 314210), (5, 251368), (8, 157105), (10, 125684), (13, 96680), (20, 62842), (26, 48340), (40, 31421), (52, 24170), (65, 19336), (104, 12085), (130, 9668), (260, 4834), (520, 2417)]