20554400

素因数分解:

$2^5\times 5^2\times {\mathrm{25693}}^1$

素因数の和:25713

約数の個数: 36

約数和(自身を含む): 50180382

約数和(自身を除く): 29625982

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 25693, 51386, 102772, 128465, 205544, 256930, 411088, 513860, 642325, 822176, 1027720, 1284650, 2055440, 2569300, 4110880, 5138600, 10277200, 20554400]

約数ペア:

[(1, 20554400), (2, 10277200), (4, 5138600), (5, 4110880), (8, 2569300), (10, 2055440), (16, 1284650), (20, 1027720), (25, 822176), (32, 642325), (40, 513860), (50, 411088), (80, 256930), (100, 205544), (160, 128465), (200, 102772), (400, 51386), (800, 25693)]