81221590

素因数分解:

$2^1\times 5^1\times {\mathrm{1523}}^1\times {\mathrm{5333}}^1$

素因数の和:6863

約数の個数: 16

約数和(自身を含む): 146322288

約数和(自身を除く): 65100698

約数列:

[1, 2, 5, 10, 1523, 3046, 5333, 7615, 10666, 15230, 26665, 53330, 8122159, 16244318, 40610795, 81221590]

約数ペア:

[(1, 81221590), (2, 40610795), (5, 16244318), (10, 8122159), (1523, 53330), (3046, 26665), (5333, 15230), (7615, 10666)]