19960772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 39325440

約数和(自身を除く): 19364668

約数列:

[1, 2, 4, 13, 26, 43, 52, 79, 86, 113, 158, 172, 226, 316, 452, 559, 1027, 1118, 1469, 2054, 2236, 2938, 3397, 4108, 4859, 5876, 6794, 8927, 9718, 13588, 17854, 19436, 35708, 44161, 63167, 88322, 116051, 126334, 176644, 232102, 252668, 383861, 464204, 767722, 1535444, 4990193, 9980386, 19960772]

約数ペア:

[(1, 19960772), (2, 9980386), (4, 4990193), (13, 1535444), (26, 767722), (43, 464204), (52, 383861), (79, 252668), (86, 232102), (113, 176644), (158, 126334), (172, 116051), (226, 88322), (316, 63167), (452, 44161), (559, 35708), (1027, 19436), (1118, 17854), (1469, 13588), (2054, 9718), (2236, 8927), (2938, 6794), (3397, 5876), (4108, 4859)]