64018040

素因数分解:

$2^3\times 5^1\times {\mathrm{1600451}}^1$

素因数の和:1600462

約数の個数: 16

約数和(自身を含む): 144040680

約数和(自身を除く): 80022640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1600451, 3200902, 6401804, 8002255, 12803608, 16004510, 32009020, 64018040]

約数ペア:

[(1, 64018040), (2, 32009020), (4, 16004510), (5, 12803608), (8, 8002255), (10, 6401804), (20, 3200902), (40, 1600451)]