20217950

素因数分解:

$2^1\times 5^2\times {\mathrm{281}}^1\times {\mathrm{1439}}^1$

素因数の和:1732

約数の個数: 24

約数和(自身を含む): 37765440

約数和(自身を除く): 17547490

約数列:

[1, 2, 5, 10, 25, 50, 281, 562, 1405, 1439, 2810, 2878, 7025, 7195, 14050, 14390, 35975, 71950, 404359, 808718, 2021795, 4043590, 10108975, 20217950]

約数ペア:

[(1, 20217950), (2, 10108975), (5, 4043590), (10, 2021795), (25, 808718), (50, 404359), (281, 71950), (562, 35975), (1405, 14390), (1439, 14050), (2810, 7195), (2878, 7025)]