81108100

素因数分解:

$2^2\times 5^2\times {\mathrm{811081}}^1$

素因数の和:811095

約数の個数: 18

約数和(自身を含む): 176004794

約数和(自身を除く): 94896694

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 811081, 1622162, 3244324, 4055405, 8110810, 16221620, 20277025, 40554050, 81108100]

約数ペア:

[(1, 81108100), (2, 40554050), (4, 20277025), (5, 16221620), (10, 8110810), (20, 4055405), (25, 3244324), (50, 1622162), (100, 811081)]