17923960

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4111}}^1$

素因数の和:4231

約数の個数: 32

約数和(自身を含む): 40708800

約数和(自身を除く): 22784840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4111, 4360, 8222, 16444, 20555, 32888, 41110, 82220, 164440, 448099, 896198, 1792396, 2240495, 3584792, 4480990, 8961980, 17923960]

約数ペア:

[(1, 17923960), (2, 8961980), (4, 4480990), (5, 3584792), (8, 2240495), (10, 1792396), (20, 896198), (40, 448099), (109, 164440), (218, 82220), (436, 41110), (545, 32888), (872, 20555), (1090, 16444), (2180, 8222), (4111, 4360)]