40081780

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{37813}}^1$

素因数の和:37875

約数の個数: 24

約数和(自身を含む): 85762152

約数和(自身を除く): 45680372

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 37813, 75626, 151252, 189065, 378130, 756260, 2004089, 4008178, 8016356, 10020445, 20040890, 40081780]

約数ペア:

[(1, 40081780), (2, 20040890), (4, 10020445), (5, 8016356), (10, 4008178), (20, 2004089), (53, 756260), (106, 378130), (212, 189065), (265, 151252), (530, 75626), (1060, 37813)]