81310645

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{33809}}^1$

素因数の和:33864

約数の個数: 16

約数和(自身を含む): 107921520

約数和(自身を除く): 26610875

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 33809, 169045, 439517, 1250933, 2197585, 6254665, 16262129, 81310645]

約数ペア:

[(1, 81310645), (5, 16262129), (13, 6254665), (37, 2197585), (65, 1250933), (185, 439517), (481, 169045), (2405, 33809)]