20365780

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19213}}^1$

素因数の和:19275

約数の個数: 24

約数和(自身を含む): 43577352

約数和(自身を除く): 23211572

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 19213, 38426, 76852, 96065, 192130, 384260, 1018289, 2036578, 4073156, 5091445, 10182890, 20365780]

約数ペア:

[(1, 20365780), (2, 10182890), (4, 5091445), (5, 4073156), (10, 2036578), (20, 1018289), (53, 384260), (106, 192130), (212, 96065), (265, 76852), (530, 38426), (1060, 19213)]