210657220

素因数分解:

$2^2\times 5^1\times {\mathrm{10532861}}^1$

素因数の和:10532870

約数の個数: 12

約数和(自身を含む): 442380204

約数和(自身を除く): 231722984

約数列:

[1, 2, 4, 5, 10, 20, 10532861, 21065722, 42131444, 52664305, 105328610, 210657220]

約数ペア:

[(1, 210657220), (2, 105328610), (4, 52664305), (5, 42131444), (10, 21065722), (20, 10532861)]