664458890

素因数分解:

$2^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{440039}}^1$

素因数の和:440197

約数の個数: 16

約数和(自身を含む): 1203949440

約数和(自身を除く): 539490550

約数列:

[1, 2, 5, 10, 151, 302, 755, 1510, 440039, 880078, 2200195, 4400390, 66445889, 132891778, 332229445, 664458890]

約数ペア:

[(1, 664458890), (2, 332229445), (5, 132891778), (10, 66445889), (151, 4400390), (302, 2200195), (755, 880078), (1510, 440039)]