25788040

素因数分解:

$2^3\times 5^1\times {\mathrm{644701}}^1$

素因数の和:644712

約数の個数: 16

約数和(自身を含む): 58023180

約数和(自身を除く): 32235140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 644701, 1289402, 2578804, 3223505, 5157608, 6447010, 12894020, 25788040]

約数ペア:

[(1, 25788040), (2, 12894020), (4, 6447010), (5, 5157608), (8, 3223505), (10, 2578804), (20, 1289402), (40, 644701)]