20657820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2711}}^1$

素因数の和:2850

約数の個数: 48

約数和(自身を含む): 58318848

約数和(自身を除く): 37661028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 381, 508, 635, 762, 1270, 1524, 1905, 2540, 2711, 3810, 5422, 7620, 8133, 10844, 13555, 16266, 27110, 32532, 40665, 54220, 81330, 162660, 344297, 688594, 1032891, 1377188, 1721485, 2065782, 3442970, 4131564, 5164455, 6885940, 10328910, 20657820]

約数ペア:

[(1, 20657820), (2, 10328910), (3, 6885940), (4, 5164455), (5, 4131564), (6, 3442970), (10, 2065782), (12, 1721485), (15, 1377188), (20, 1032891), (30, 688594), (60, 344297), (127, 162660), (254, 81330), (381, 54220), (508, 40665), (635, 32532), (762, 27110), (1270, 16266), (1524, 13555), (1905, 10844), (2540, 8133), (2711, 7620), (3810, 5422)]