640882965

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{993617}}^1$

素因数の和:993668

約数の個数: 16

約数和(自身を含む): 1049260608

約数和(自身を除く): 408377643

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 993617, 2980851, 4968085, 14904255, 42725531, 128176593, 213627655, 640882965]

約数ペア:

[(1, 640882965), (3, 213627655), (5, 128176593), (15, 42725531), (43, 14904255), (129, 4968085), (215, 2980851), (645, 993617)]