20217200

素因数分解:

$2^4\times 5^2\times {\mathrm{50543}}^1$

素因数の和:50561

約数の個数: 30

約数和(自身を含む): 48572784

約数和(自身を除く): 28355584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 50543, 101086, 202172, 252715, 404344, 505430, 808688, 1010860, 1263575, 2021720, 2527150, 4043440, 5054300, 10108600, 20217200]

約数ペア:

[(1, 20217200), (2, 10108600), (4, 5054300), (5, 4043440), (8, 2527150), (10, 2021720), (16, 1263575), (20, 1010860), (25, 808688), (40, 505430), (50, 404344), (80, 252715), (100, 202172), (200, 101086), (400, 50543)]