2180857640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4193957}}^1$

素因数の和:4193981

約数の個数: 32

約数和(自身を含む): 5284387080

約数和(自身を除く): 3103529440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 4193957, 8387914, 16775828, 20969785, 33551656, 41939570, 54521441, 83879140, 109042882, 167758280, 218085764, 272607205, 436171528, 545214410, 1090428820, 2180857640]

約数ペア:

[(1, 2180857640), (2, 1090428820), (4, 545214410), (5, 436171528), (8, 272607205), (10, 218085764), (13, 167758280), (20, 109042882), (26, 83879140), (40, 54521441), (52, 41939570), (65, 33551656), (104, 20969785), (130, 16775828), (260, 8387914), (520, 4193957)]