40213900

素因数分解:

$2^2\times 5^2\times {\mathrm{402139}}^1$

素因数の和:402153

約数の個数: 18

約数和(自身を含む): 87264380

約数和(自身を除く): 47050480

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 402139, 804278, 1608556, 2010695, 4021390, 8042780, 10053475, 20106950, 40213900]

約数ペア:

[(1, 40213900), (2, 20106950), (4, 10053475), (5, 8042780), (10, 4021390), (20, 2010695), (25, 1608556), (50, 804278), (100, 402139)]