20862280

素因数分解:

$2^3\times 5^1\times {\mathrm{521557}}^1$

素因数の和:521568

約数の個数: 16

約数和(自身を含む): 46940220

約数和(自身を除く): 26077940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521557, 1043114, 2086228, 2607785, 4172456, 5215570, 10431140, 20862280]

約数ペア:

[(1, 20862280), (2, 10431140), (4, 5215570), (5, 4172456), (8, 2607785), (10, 2086228), (20, 1043114), (40, 521557)]