64845940

素因数分解:

$2^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{5821}}^1$

素因数の和:6387

約数の個数: 24

約数和(自身を含む): 136444392

約数和(自身を除く): 71598452

約数列:

[1, 2, 4, 5, 10, 20, 557, 1114, 2228, 2785, 5570, 5821, 11140, 11642, 23284, 29105, 58210, 116420, 3242297, 6484594, 12969188, 16211485, 32422970, 64845940]

約数ペア:

[(1, 64845940), (2, 32422970), (4, 16211485), (5, 12969188), (10, 6484594), (20, 3242297), (557, 116420), (1114, 58210), (2228, 29105), (2785, 23284), (5570, 11642), (5821, 11140)]