81910645

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{3121}}^1$

素因数の和:3336

約数の個数: 16

約数和(自身を含む): 102276720

約数和(自身を除く): 20366075

約数列:

[1, 5, 29, 145, 181, 905, 3121, 5249, 15605, 26245, 90509, 452545, 564901, 2824505, 16382129, 81910645]

約数ペア:

[(1, 81910645), (5, 16382129), (29, 2824505), (145, 564901), (181, 452545), (905, 90509), (3121, 26245), (5249, 15605)]