80621570

素因数分解:

$2^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{18199}}^1$

素因数の和:18649

約数の個数: 16

約数和(自身を含む): 145454400

約数和(自身を除く): 64832830

約数列:

[1, 2, 5, 10, 443, 886, 2215, 4430, 18199, 36398, 90995, 181990, 8062157, 16124314, 40310785, 80621570]

約数ペア:

[(1, 80621570), (2, 40310785), (5, 16124314), (10, 8062157), (443, 181990), (886, 90995), (2215, 36398), (4430, 18199)]