18928040

素因数分解:

$2^3\times 5^1\times {\mathrm{473201}}^1$

素因数の和:473212

約数の個数: 16

約数和(自身を含む): 42588180

約数和(自身を除く): 23660140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 473201, 946402, 1892804, 2366005, 3785608, 4732010, 9464020, 18928040]

約数ペア:

[(1, 18928040), (2, 9464020), (4, 4732010), (5, 3785608), (8, 2366005), (10, 1892804), (20, 946402), (40, 473201)]