12809080

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3109}}^1$

素因数の和:3223

約数の個数: 32

約数和(自身を含む): 29109600

約数和(自身を除く): 16300520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 3109, 4120, 6218, 12436, 15545, 24872, 31090, 62180, 124360, 320227, 640454, 1280908, 1601135, 2561816, 3202270, 6404540, 12809080]

約数ペア:

[(1, 12809080), (2, 6404540), (4, 3202270), (5, 2561816), (8, 1601135), (10, 1280908), (20, 640454), (40, 320227), (103, 124360), (206, 62180), (412, 31090), (515, 24872), (824, 15545), (1030, 12436), (2060, 6218), (3109, 4120)]