72421240

素因数分解:

$2^3\times 5^1\times {\mathrm{1810531}}^1$

素因数の和:1810542

約数の個数: 16

約数和(自身を含む): 162947880

約数和(自身を除く): 90526640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1810531, 3621062, 7242124, 9052655, 14484248, 18105310, 36210620, 72421240]

約数ペア:

[(1, 72421240), (2, 36210620), (4, 18105310), (5, 14484248), (8, 9052655), (10, 7242124), (20, 3621062), (40, 1810531)]