55181980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{394157}}^1$

素因数の和:394173

約数の個数: 24

約数和(自身を含む): 132437088

約数和(自身を除く): 77255108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 394157, 788314, 1576628, 1970785, 2759099, 3941570, 5518198, 7883140, 11036396, 13795495, 27590990, 55181980]

約数ペア:

[(1, 55181980), (2, 27590990), (4, 13795495), (5, 11036396), (7, 7883140), (10, 5518198), (14, 3941570), (20, 2759099), (28, 1970785), (35, 1576628), (70, 788314), (140, 394157)]