1665355220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2030921}}^1$

素因数の和:2030971

約数の個数: 24

約数和(自身を含む): 3582546408

約数和(自身を除く): 1917191188

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 2030921, 4061842, 8123684, 10154605, 20309210, 40618420, 83267761, 166535522, 333071044, 416338805, 832677610, 1665355220]

約数ペア:

[(1, 1665355220), (2, 832677610), (4, 416338805), (5, 333071044), (10, 166535522), (20, 83267761), (41, 40618420), (82, 20309210), (164, 10154605), (205, 8123684), (410, 4061842), (820, 2030921)]