20309350

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{9907}}^1$

素因数の和:9960

約数の個数: 24

約数和(自身を含む): 38700648

約数和(自身を除く): 18391298

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 205, 410, 1025, 2050, 9907, 19814, 49535, 99070, 247675, 406187, 495350, 812374, 2030935, 4061870, 10154675, 20309350]

約数ペア:

[(1, 20309350), (2, 10154675), (5, 4061870), (10, 2030935), (25, 812374), (41, 495350), (50, 406187), (82, 247675), (205, 99070), (410, 49535), (1025, 19814), (2050, 9907)]