20177187820

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4221169}}^1$

素因数の和:4221417

約数の個数: 24

約数和(自身を含む): 42549393600

約数和(自身を除く): 22372205780

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 4221169, 8442338, 16884676, 21105845, 42211690, 84423380, 1008859391, 2017718782, 4035437564, 5044296955, 10088593910, 20177187820]

約数ペア:

[(1, 20177187820), (2, 10088593910), (4, 5044296955), (5, 4035437564), (10, 2017718782), (20, 1008859391), (239, 84423380), (478, 42211690), (956, 21105845), (1195, 16884676), (2390, 8442338), (4780, 4221169)]