129623140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{158077}}^1$

素因数の和:158127

約数の個数: 24

約数和(自身を含む): 278849592

約数和(自身を除く): 149226452

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 158077, 316154, 632308, 790385, 1580770, 3161540, 6481157, 12962314, 25924628, 32405785, 64811570, 129623140]

約数ペア:

[(1, 129623140), (2, 64811570), (4, 32405785), (5, 25924628), (10, 12962314), (20, 6481157), (41, 3161540), (82, 1580770), (164, 790385), (205, 632308), (410, 316154), (820, 158077)]