81534665

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{601}}^1\times {\mathrm{631}}^1$

素因数の和:1280

約数の個数: 16

約数和(自身を含む): 100442496

約数和(自身を除く): 18907831

約数列:

[1, 5, 43, 215, 601, 631, 3005, 3155, 25843, 27133, 129215, 135665, 379231, 1896155, 16306933, 81534665]

約数ペア:

[(1, 81534665), (5, 16306933), (43, 1896155), (215, 379231), (601, 135665), (631, 129215), (3005, 27133), (3155, 25843)]