81531505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{6151}}^1$

素因数の和:6408

約数の個数: 16

約数和(自身を含む): 107192448

約数和(自身を除く): 25660943

約数列:

[1, 5, 11, 55, 241, 1205, 2651, 6151, 13255, 30755, 67661, 338305, 1482391, 7411955, 16306301, 81531505]

約数ペア:

[(1, 81531505), (5, 16306301), (11, 7411955), (55, 1482391), (241, 338305), (1205, 67661), (2651, 30755), (6151, 13255)]