2123202140

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{651289}}^1$

素因数の和:651461

約数の個数: 24

約数和(自身を含む): 4486085520

約数和(自身を除く): 2362883380

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 651289, 1302578, 2605156, 3256445, 6512890, 13025780, 106160107, 212320214, 424640428, 530800535, 1061601070, 2123202140]

約数ペア:

[(1, 2123202140), (2, 1061601070), (4, 530800535), (5, 424640428), (10, 212320214), (20, 106160107), (163, 13025780), (326, 6512890), (652, 3256445), (815, 2605156), (1630, 1302578), (3260, 651289)]