8244440

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2609}}^1$

素因数の和:2699

約数の個数: 32

約数和(自身を含む): 18792000

約数和(自身を除く): 10547560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 2609, 3160, 5218, 10436, 13045, 20872, 26090, 52180, 104360, 206111, 412222, 824444, 1030555, 1648888, 2061110, 4122220, 8244440]

約数ペア:

[(1, 8244440), (2, 4122220), (4, 2061110), (5, 1648888), (8, 1030555), (10, 824444), (20, 412222), (40, 206111), (79, 104360), (158, 52180), (316, 26090), (395, 20872), (632, 13045), (790, 10436), (1580, 5218), (2609, 3160)]