1636009040

素因数分解:

$2^4\times 5^1\times {\mathrm{20450113}}^1$

素因数の和:20450126

約数の個数: 20

約数和(自身を含む): 3803721204

約数和(自身を除く): 2167712164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 20450113, 40900226, 81800452, 102250565, 163600904, 204501130, 327201808, 409002260, 818004520, 1636009040]

約数ペア:

[(1, 1636009040), (2, 818004520), (4, 409002260), (5, 327201808), (8, 204501130), (10, 163600904), (16, 102250565), (20, 81800452), (40, 40900226), (80, 20450113)]