28016620

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{5581}}^1$

素因数の和:5841

約数の個数: 24

約数和(自身を含む): 59079888

約数和(自身を除く): 31063268

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 5581, 11162, 22324, 27905, 55810, 111620, 1400831, 2801662, 5603324, 7004155, 14008310, 28016620]

約数ペア:

[(1, 28016620), (2, 14008310), (4, 7004155), (5, 5603324), (10, 2801662), (20, 1400831), (251, 111620), (502, 55810), (1004, 27905), (1255, 22324), (2510, 11162), (5020, 5581)]