308959340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{217577}}^1$

素因数の和:217657

約数の個数: 24

約数和(自身を含む): 657955872

約数和(自身を除く): 348996532

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 217577, 435154, 870308, 1087885, 2175770, 4351540, 15447967, 30895934, 61791868, 77239835, 154479670, 308959340]

約数ペア:

[(1, 308959340), (2, 154479670), (4, 77239835), (5, 61791868), (10, 30895934), (20, 15447967), (71, 4351540), (142, 2175770), (284, 1087885), (355, 870308), (710, 435154), (1420, 217577)]