20464180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{557}}^1$

素因数の和:744

約数の個数: 48

約数和(自身を含む): 47246976

約数和(自身を除く): 26782796

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 167, 220, 334, 557, 668, 835, 1114, 1670, 1837, 2228, 2785, 3340, 3674, 5570, 6127, 7348, 9185, 11140, 12254, 18370, 24508, 30635, 36740, 61270, 93019, 122540, 186038, 372076, 465095, 930190, 1023209, 1860380, 2046418, 4092836, 5116045, 10232090, 20464180]

約数ペア:

[(1, 20464180), (2, 10232090), (4, 5116045), (5, 4092836), (10, 2046418), (11, 1860380), (20, 1023209), (22, 930190), (44, 465095), (55, 372076), (110, 186038), (167, 122540), (220, 93019), (334, 61270), (557, 36740), (668, 30635), (835, 24508), (1114, 18370), (1670, 12254), (1837, 11140), (2228, 9185), (2785, 7348), (3340, 6127), (3674, 5570)]