25787788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 52433920

約数和(自身を除く): 26646132

約数列:

[1, 2, 4, 13, 19, 26, 38, 43, 52, 76, 86, 172, 247, 494, 559, 607, 817, 988, 1118, 1214, 1634, 2236, 2428, 3268, 7891, 10621, 11533, 15782, 21242, 23066, 26101, 31564, 42484, 46132, 52202, 104404, 149929, 299858, 339313, 495919, 599716, 678626, 991838, 1357252, 1983676, 6446947, 12893894, 25787788]

約数ペア:

[(1, 25787788), (2, 12893894), (4, 6446947), (13, 1983676), (19, 1357252), (26, 991838), (38, 678626), (43, 599716), (52, 495919), (76, 339313), (86, 299858), (172, 149929), (247, 104404), (494, 52202), (559, 46132), (607, 42484), (817, 31564), (988, 26101), (1118, 23066), (1214, 21242), (1634, 15782), (2236, 11533), (2428, 10621), (3268, 7891)]