18921200

素因数分解:

$2^4\times 5^2\times {\mathrm{47303}}^1$

素因数の和:47321

約数の個数: 30

約数和(自身を含む): 45459144

約数和(自身を除く): 26537944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 47303, 94606, 189212, 236515, 378424, 473030, 756848, 946060, 1182575, 1892120, 2365150, 3784240, 4730300, 9460600, 18921200]

約数ペア:

[(1, 18921200), (2, 9460600), (4, 4730300), (5, 3784240), (8, 2365150), (10, 1892120), (16, 1182575), (20, 946060), (25, 756848), (40, 473030), (50, 378424), (80, 236515), (100, 189212), (200, 94606), (400, 47303)]