84280720

素因数分解:

$2^4\times 5^1\times {\mathrm{1053509}}^1$

素因数の和:1053522

約数の個数: 20

約数和(自身を含む): 195952860

約数和(自身を除く): 111672140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1053509, 2107018, 4214036, 5267545, 8428072, 10535090, 16856144, 21070180, 42140360, 84280720]

約数ペア:

[(1, 84280720), (2, 42140360), (4, 21070180), (5, 16856144), (8, 10535090), (10, 8428072), (16, 5267545), (20, 4214036), (40, 2107018), (80, 1053509)]