712220

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:397

約数の個数: 24

約数和(自身を含む): 1512000

約数和(自身を除く): 799780

約数列:

[1, 2, 4, 5, 10, 20, 149, 239, 298, 478, 596, 745, 956, 1195, 1490, 2390, 2980, 4780, 35611, 71222, 142444, 178055, 356110, 712220]

約数ペア:

[(1, 712220), (2, 356110), (4, 178055), (5, 142444), (10, 71222), (20, 35611), (149, 4780), (239, 2980), (298, 2390), (478, 1490), (596, 1195), (745, 956)]