20464210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12109}}^1$

素因数の和:12142

約数の個数: 24

約数和(自身を含む): 39890340

約数和(自身を除く): 19426130

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 12109, 24218, 60545, 121090, 157417, 314834, 787085, 1574170, 2046421, 4092842, 10232105, 20464210]

約数ペア:

[(1, 20464210), (2, 10232105), (5, 4092842), (10, 2046421), (13, 1574170), (26, 787085), (65, 314834), (130, 157417), (169, 121090), (338, 60545), (845, 24218), (1690, 12109)]