16990180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{44711}}^1$

素因数の和:44739

約数の個数: 24

約数和(自身を含む): 37558080

約数和(自身を除く): 20567900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 44711, 89422, 178844, 223555, 447110, 849509, 894220, 1699018, 3398036, 4247545, 8495090, 16990180]

約数ペア:

[(1, 16990180), (2, 8495090), (4, 4247545), (5, 3398036), (10, 1699018), (19, 894220), (20, 849509), (38, 447110), (76, 223555), (95, 178844), (190, 89422), (380, 44711)]