139352020

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1\times {\mathrm{661}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 298948608

約数和(自身を除く): 159596588

約数列:

[1, 2, 4, 5, 10, 20, 83, 127, 166, 254, 332, 415, 508, 635, 661, 830, 1270, 1322, 1660, 2540, 2644, 3305, 6610, 10541, 13220, 21082, 42164, 52705, 54863, 83947, 105410, 109726, 167894, 210820, 219452, 274315, 335788, 419735, 548630, 839470, 1097260, 1678940, 6967601, 13935202, 27870404, 34838005, 69676010, 139352020]

約数ペア:

[(1, 139352020), (2, 69676010), (4, 34838005), (5, 27870404), (10, 13935202), (20, 6967601), (83, 1678940), (127, 1097260), (166, 839470), (254, 548630), (332, 419735), (415, 335788), (508, 274315), (635, 219452), (661, 210820), (830, 167894), (1270, 109726), (1322, 105410), (1660, 83947), (2540, 54863), (2644, 52705), (3305, 42164), (6610, 21082), (10541, 13220)]