321274820

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{142157}}^1$

素因数の和:142279

約数の個数: 24

約数和(自身を含む): 680652504

約数和(自身を除く): 359377684

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 142157, 284314, 568628, 710785, 1421570, 2843140, 16063741, 32127482, 64254964, 80318705, 160637410, 321274820]

約数ペア:

[(1, 321274820), (2, 160637410), (4, 80318705), (5, 64254964), (10, 32127482), (20, 16063741), (113, 2843140), (226, 1421570), (452, 710785), (565, 568628), (1130, 284314), (2260, 142157)]