20222380

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{5081}}^1$

素因数の和:5289

約数の個数: 24

約数和(自身を含む): 42688800

約数和(自身を除く): 22466420

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 5081, 10162, 20324, 25405, 50810, 101620, 1011119, 2022238, 4044476, 5055595, 10111190, 20222380]

約数ペア:

[(1, 20222380), (2, 10111190), (4, 5055595), (5, 4044476), (10, 2022238), (20, 1011119), (199, 101620), (398, 50810), (796, 25405), (995, 20324), (1990, 10162), (3980, 5081)]