20087777380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{510101}}^1$

素因数の和:510300

約数の個数: 48

約数和(自身を含む): 46276453440

約数和(自身を除く): 26188676060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 179, 220, 358, 716, 895, 1790, 1969, 3580, 3938, 7876, 9845, 19690, 39380, 510101, 1020202, 2040404, 2550505, 5101010, 5611111, 10202020, 11222222, 22444444, 28055555, 56111110, 91308079, 112222220, 182616158, 365232316, 456540395, 913080790, 1004388869, 1826161580, 2008777738, 4017555476, 5021944345, 10043888690, 20087777380]

約数ペア:

[(1, 20087777380), (2, 10043888690), (4, 5021944345), (5, 4017555476), (10, 2008777738), (11, 1826161580), (20, 1004388869), (22, 913080790), (44, 456540395), (55, 365232316), (110, 182616158), (179, 112222220), (220, 91308079), (358, 56111110), (716, 28055555), (895, 22444444), (1790, 11222222), (1969, 10202020), (3580, 5611111), (3938, 5101010), (7876, 2550505), (9845, 2040404), (19690, 1020202), (39380, 510101)]