89287640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{171707}}^1$

素因数の和:171731

約数の個数: 32

約数和(自身を含む): 216352080

約数和(自身を除く): 127064440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 171707, 343414, 686828, 858535, 1373656, 1717070, 2232191, 3434140, 4464382, 6868280, 8928764, 11160955, 17857528, 22321910, 44643820, 89287640]

約数ペア:

[(1, 89287640), (2, 44643820), (4, 22321910), (5, 17857528), (8, 11160955), (10, 8928764), (13, 6868280), (20, 4464382), (26, 3434140), (40, 2232191), (52, 1717070), (65, 1373656), (104, 858535), (130, 686828), (260, 343414), (520, 171707)]