85161680

素因数分解:

$2^4\times 5^1\times {\mathrm{1064521}}^1$

素因数の和:1064534

約数の個数: 20

約数和(自身を含む): 198001092

約数和(自身を除く): 112839412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1064521, 2129042, 4258084, 5322605, 8516168, 10645210, 17032336, 21290420, 42580840, 85161680]

約数ペア:

[(1, 85161680), (2, 42580840), (4, 21290420), (5, 17032336), (8, 10645210), (10, 8516168), (16, 5322605), (20, 4258084), (40, 2129042), (80, 1064521)]