81531250

素因数分解:

$2^1\times 5^6\times {\mathrm{2609}}^1$

素因数の和:2641

約数の個数: 28

約数和(自身を含む): 152927730

約数和(自身を除く): 71396480

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 2609, 3125, 5218, 6250, 13045, 15625, 26090, 31250, 65225, 130450, 326125, 652250, 1630625, 3261250, 8153125, 16306250, 40765625, 81531250]

約数ペア:

[(1, 81531250), (2, 40765625), (5, 16306250), (10, 8153125), (25, 3261250), (50, 1630625), (125, 652250), (250, 326125), (625, 130450), (1250, 65225), (2609, 31250), (3125, 26090), (5218, 15625), (6250, 13045)]