81294220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{580673}}^1$

素因数の和:580689

約数の個数: 24

約数和(自身を含む): 195106464

約数和(自身を除く): 113812244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 580673, 1161346, 2322692, 2903365, 4064711, 5806730, 8129422, 11613460, 16258844, 20323555, 40647110, 81294220]

約数ペア:

[(1, 81294220), (2, 40647110), (4, 20323555), (5, 16258844), (7, 11613460), (10, 8129422), (14, 5806730), (20, 4064711), (28, 2903365), (35, 2322692), (70, 1161346), (140, 580673)]