31128040

素因数分解:

$2^3\times 5^1\times {\mathrm{778201}}^1$

素因数の和:778212

約数の個数: 16

約数和(自身を含む): 70038180

約数和(自身を除く): 38910140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 778201, 1556402, 3112804, 3891005, 6225608, 7782010, 15564020, 31128040]

約数ペア:

[(1, 31128040), (2, 15564020), (4, 7782010), (5, 6225608), (8, 3891005), (10, 3112804), (20, 1556402), (40, 778201)]