20237500

素因数分解:

$2^2\times 5^5\times {\mathrm{1619}}^1$

素因数の和:1648

約数の個数: 36

約数和(自身を含む): 44294040

約数和(自身を除く): 24056540

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 1619, 2500, 3125, 3238, 6250, 6476, 8095, 12500, 16190, 32380, 40475, 80950, 161900, 202375, 404750, 809500, 1011875, 2023750, 4047500, 5059375, 10118750, 20237500]

約数ペア:

[(1, 20237500), (2, 10118750), (4, 5059375), (5, 4047500), (10, 2023750), (20, 1011875), (25, 809500), (50, 404750), (100, 202375), (125, 161900), (250, 80950), (500, 40475), (625, 32380), (1250, 16190), (1619, 12500), (2500, 8095), (3125, 6476), (3238, 6250)]