20185484260

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1982857}}^1$

素因数の和:1983375

約数の個数: 24

約数和(自身を含む): 42472818360

約数和(自身を除く): 22287334100

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 5090, 10180, 1982857, 3965714, 7931428, 9914285, 19828570, 39657140, 1009274213, 2018548426, 4037096852, 5046371065, 10092742130, 20185484260]

約数ペア:

[(1, 20185484260), (2, 10092742130), (4, 5046371065), (5, 4037096852), (10, 2018548426), (20, 1009274213), (509, 39657140), (1018, 19828570), (2036, 9914285), (2545, 7931428), (5090, 3965714), (10180, 1982857)]