664514260

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{772691}}^1$

素因数の和:772743

約数の個数: 24

約数和(自身を含む): 1427934816

約数和(自身を除く): 763420556

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 772691, 1545382, 3090764, 3863455, 7726910, 15453820, 33225713, 66451426, 132902852, 166128565, 332257130, 664514260]

約数ペア:

[(1, 664514260), (2, 332257130), (4, 166128565), (5, 132902852), (10, 66451426), (20, 33225713), (43, 15453820), (86, 7726910), (172, 3863455), (215, 3090764), (430, 1545382), (860, 772691)]