155251120

素因数分解:

$2^4\times 5^1\times {\mathrm{1940639}}^1$

素因数の和:1940652

約数の個数: 20

約数和(自身を含む): 360959040

約数和(自身を除く): 205707920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1940639, 3881278, 7762556, 9703195, 15525112, 19406390, 31050224, 38812780, 77625560, 155251120]

約数ペア:

[(1, 155251120), (2, 77625560), (4, 38812780), (5, 31050224), (8, 19406390), (10, 15525112), (16, 9703195), (20, 7762556), (40, 3881278), (80, 1940639)]