19913150

素因数分解:

$2^1\times 5^2\times {\mathrm{449}}^1\times {\mathrm{887}}^1$

素因数の和:1348

約数の個数: 24

約数和(自身を含む): 37162800

約数和(自身を除く): 17249650

約数列:

[1, 2, 5, 10, 25, 50, 449, 887, 898, 1774, 2245, 4435, 4490, 8870, 11225, 22175, 22450, 44350, 398263, 796526, 1991315, 3982630, 9956575, 19913150]

約数ペア:

[(1, 19913150), (2, 9956575), (5, 3982630), (10, 1991315), (25, 796526), (50, 398263), (449, 44350), (887, 22450), (898, 22175), (1774, 11225), (2245, 8870), (4435, 4490)]