210867620

素因数分解:

$2^2\times 5^1\times {\mathrm{10543381}}^1$

素因数の和:10543390

約数の個数: 12

約数和(自身を含む): 442822044

約数和(自身を除く): 231954424

約数列:

[1, 2, 4, 5, 10, 20, 10543381, 21086762, 42173524, 52716905, 105433810, 210867620]

約数ペア:

[(1, 210867620), (2, 105433810), (4, 52716905), (5, 42173524), (10, 21086762), (20, 10543381)]