42090220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29641}}^1$

素因数の和:29721

約数の個数: 24

約数和(自身を含む): 89637408

約数和(自身を除く): 47547188

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 29641, 59282, 118564, 148205, 296410, 592820, 2104511, 4209022, 8418044, 10522555, 21045110, 42090220]

約数ペア:

[(1, 42090220), (2, 21045110), (4, 10522555), (5, 8418044), (10, 4209022), (20, 2104511), (71, 592820), (142, 296410), (284, 148205), (355, 118564), (710, 59282), (1420, 29641)]