664037240

素因数分解:

$2^3\times 5^1\times {\mathrm{16600931}}^1$

素因数の和:16600942

約数の個数: 16

約数和(自身を含む): 1494083880

約数和(自身を除く): 830046640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 16600931, 33201862, 66403724, 83004655, 132807448, 166009310, 332018620, 664037240]

約数ペア:

[(1, 664037240), (2, 332018620), (4, 166009310), (5, 132807448), (8, 83004655), (10, 66403724), (20, 33201862), (40, 16600931)]