640147222

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2238277}}^1$

素因数の和:2238303

約数の個数: 16

約数和(自身を含む): 1128092112

約数和(自身を除く): 487944890

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 2238277, 4476554, 24621047, 29097601, 49242094, 58195202, 320073611, 640147222]

約数ペア:

[(1, 640147222), (2, 320073611), (11, 58195202), (13, 49242094), (22, 29097601), (26, 24621047), (143, 4476554), (286, 2238277)]