20105660

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 43860096

約数和(自身を除く): 23754436

約数列:

[1, 2, 4, 5, 10, 20, 47, 73, 94, 146, 188, 235, 292, 293, 365, 470, 586, 730, 940, 1172, 1460, 1465, 2930, 3431, 5860, 6862, 13724, 13771, 17155, 21389, 27542, 34310, 42778, 55084, 68620, 68855, 85556, 106945, 137710, 213890, 275420, 427780, 1005283, 2010566, 4021132, 5026415, 10052830, 20105660]

約数ペア:

[(1, 20105660), (2, 10052830), (4, 5026415), (5, 4021132), (10, 2010566), (20, 1005283), (47, 427780), (73, 275420), (94, 213890), (146, 137710), (188, 106945), (235, 85556), (292, 68855), (293, 68620), (365, 55084), (470, 42778), (586, 34310), (730, 27542), (940, 21389), (1172, 17155), (1460, 13771), (1465, 13724), (2930, 6862), (3431, 5860)]