81210730

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{280037}}^1$

素因数の和:280073

約数の個数: 16

約数和(自身を含む): 151220520

約数和(自身を除く): 70009790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 280037, 560074, 1400185, 2800370, 8121073, 16242146, 40605365, 81210730]

約数ペア:

[(1, 81210730), (2, 40605365), (5, 16242146), (10, 8121073), (29, 2800370), (58, 1400185), (145, 560074), (290, 280037)]