20225828

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{2789}}^1$

素因数の和:2844

約数の個数: 36

約数和(自身を含む): 42301980

約数和(自身を除く): 22076152

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 518, 1036, 1813, 2789, 3626, 5578, 7252, 11156, 19523, 39046, 78092, 103193, 136661, 206386, 273322, 412772, 546644, 722351, 1444702, 2889404, 5056457, 10112914, 20225828]

約数ペア:

[(1, 20225828), (2, 10112914), (4, 5056457), (7, 2889404), (14, 1444702), (28, 722351), (37, 546644), (49, 412772), (74, 273322), (98, 206386), (148, 136661), (196, 103193), (259, 78092), (518, 39046), (1036, 19523), (1813, 11156), (2789, 7252), (3626, 5578)]