19078072

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 39396240

約数和(自身を除く): 20318168

約数列:

[1, 2, 4, 8, 13, 26, 52, 103, 104, 137, 169, 206, 274, 338, 412, 548, 676, 824, 1096, 1339, 1352, 1781, 2678, 3562, 5356, 7124, 10712, 14111, 14248, 17407, 23153, 28222, 34814, 46306, 56444, 69628, 92612, 112888, 139256, 183443, 185224, 366886, 733772, 1467544, 2384759, 4769518, 9539036, 19078072]

約数ペア:

[(1, 19078072), (2, 9539036), (4, 4769518), (8, 2384759), (13, 1467544), (26, 733772), (52, 366886), (103, 185224), (104, 183443), (137, 139256), (169, 112888), (206, 92612), (274, 69628), (338, 56444), (412, 46306), (548, 34814), (676, 28222), (824, 23153), (1096, 17407), (1339, 14248), (1352, 14111), (1781, 10712), (2678, 7124), (3562, 5356)]