84920720

素因数分解:

$2^4\times 5^1\times {\mathrm{1061509}}^1$

素因数の和:1061522

約数の個数: 20

約数和(自身を含む): 197440860

約数和(自身を除く): 112520140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1061509, 2123018, 4246036, 5307545, 8492072, 10615090, 16984144, 21230180, 42460360, 84920720]

約数ペア:

[(1, 84920720), (2, 42460360), (4, 21230180), (5, 16984144), (8, 10615090), (10, 8492072), (16, 5307545), (20, 4246036), (40, 2123018), (80, 1061509)]