71356220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{2161}}^1$

素因数の和:2310

約数の個数: 48

約数和(自身を含む): 162720768

約数和(自身を除く): 91364548

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 1270, 1651, 2161, 2540, 3302, 4322, 6604, 8255, 8644, 10805, 16510, 21610, 28093, 33020, 43220, 56186, 112372, 140465, 274447, 280930, 548894, 561860, 1097788, 1372235, 2744470, 3567811, 5488940, 7135622, 14271244, 17839055, 35678110, 71356220]

約数ペア:

[(1, 71356220), (2, 35678110), (4, 17839055), (5, 14271244), (10, 7135622), (13, 5488940), (20, 3567811), (26, 2744470), (52, 1372235), (65, 1097788), (127, 561860), (130, 548894), (254, 280930), (260, 274447), (508, 140465), (635, 112372), (1270, 56186), (1651, 43220), (2161, 33020), (2540, 28093), (3302, 21610), (4322, 16510), (6604, 10805), (8255, 8644)]