90980900

素因数分解:

$2^2\times 5^2\times {\mathrm{909809}}^1$

素因数の和:909823

約数の個数: 18

約数和(自身を含む): 197428770

約数和(自身を除く): 106447870

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 909809, 1819618, 3639236, 4549045, 9098090, 18196180, 22745225, 45490450, 90980900]

約数ペア:

[(1, 90980900), (2, 45490450), (4, 22745225), (5, 18196180), (10, 9098090), (20, 4549045), (25, 3639236), (50, 1819618), (100, 909809)]