20052280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12227}}^1$

素因数の和:12279

約数の個数: 32

約数和(自身を含む): 46221840

約数和(自身を除く): 26169560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 12227, 24454, 48908, 61135, 97816, 122270, 244540, 489080, 501307, 1002614, 2005228, 2506535, 4010456, 5013070, 10026140, 20052280]

約数ペア:

[(1, 20052280), (2, 10026140), (4, 5013070), (5, 4010456), (8, 2506535), (10, 2005228), (20, 1002614), (40, 501307), (41, 489080), (82, 244540), (164, 122270), (205, 97816), (328, 61135), (410, 48908), (820, 24454), (1640, 12227)]