81613895

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{277}}^1\times {\mathrm{487}}^1$

素因数の和:791

約数の個数: 24

約数和(自身を含む): 108259872

約数和(自身を除く): 26645977

約数列:

[1, 5, 11, 55, 121, 277, 487, 605, 1385, 2435, 3047, 5357, 15235, 26785, 33517, 58927, 134899, 167585, 294635, 674495, 1483889, 7419445, 16322779, 81613895]

約数ペア:

[(1, 81613895), (5, 16322779), (11, 7419445), (55, 1483889), (121, 674495), (277, 294635), (487, 167585), (605, 134899), (1385, 58927), (2435, 33517), (3047, 26785), (5357, 15235)]