81260590

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{74551}}^1$

素因数の和:74667

約数の個数: 16

約数和(自身を含む): 147612960

約数和(自身を除く): 66352370

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 74551, 149102, 372755, 745510, 8126059, 16252118, 40630295, 81260590]

約数ペア:

[(1, 81260590), (2, 40630295), (5, 16252118), (10, 8126059), (109, 745510), (218, 372755), (545, 149102), (1090, 74551)]