40125040

素因数分解:

$2^4\times 5^1\times {\mathrm{501563}}^1$

素因数の和:501576

約数の個数: 20

約数和(自身を含む): 93290904

約数和(自身を除く): 53165864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 501563, 1003126, 2006252, 2507815, 4012504, 5015630, 8025008, 10031260, 20062520, 40125040]

約数ペア:

[(1, 40125040), (2, 20062520), (4, 10031260), (5, 8025008), (8, 5015630), (10, 4012504), (16, 2507815), (20, 2006252), (40, 1003126), (80, 501563)]