81855046

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 157239936

約数和(自身を除く): 75384890

約数列:

[1, 2, 7, 13, 14, 26, 61, 73, 91, 101, 122, 146, 182, 202, 427, 511, 707, 793, 854, 949, 1022, 1313, 1414, 1586, 1898, 2626, 4453, 5551, 6161, 6643, 7373, 8906, 9191, 11102, 12322, 13286, 14746, 18382, 31171, 43127, 51611, 57889, 62342, 80093, 86254, 95849, 103222, 115778, 160186, 191698, 405223, 449753, 560651, 670943, 810446, 899506, 1121302, 1341886, 3148271, 5846789, 6296542, 11693578, 40927523, 81855046]

約数ペア:

[(1, 81855046), (2, 40927523), (7, 11693578), (13, 6296542), (14, 5846789), (26, 3148271), (61, 1341886), (73, 1121302), (91, 899506), (101, 810446), (122, 670943), (146, 560651), (182, 449753), (202, 405223), (427, 191698), (511, 160186), (707, 115778), (793, 103222), (854, 95849), (949, 86254), (1022, 80093), (1313, 62342), (1414, 57889), (1586, 51611), (1898, 43127), (2626, 31171), (4453, 18382), (5551, 14746), (6161, 13286), (6643, 12322), (7373, 11102), (8906, 9191)]