81188926

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 155990016

約数和(自身を除く): 74801090

約数列:

[1, 2, 7, 13, 14, 26, 61, 71, 91, 103, 122, 142, 182, 206, 427, 497, 721, 793, 854, 923, 994, 1339, 1442, 1586, 1846, 2678, 4331, 5551, 6283, 6461, 7313, 8662, 9373, 11102, 12566, 12922, 14626, 18746, 30317, 43981, 51191, 56303, 60634, 81679, 87962, 95069, 102382, 112606, 163358, 190138, 394121, 446093, 571753, 665483, 788242, 892186, 1143506, 1330966, 3122651, 5799209, 6245302, 11598418, 40594463, 81188926]

約数ペア:

[(1, 81188926), (2, 40594463), (7, 11598418), (13, 6245302), (14, 5799209), (26, 3122651), (61, 1330966), (71, 1143506), (91, 892186), (103, 788242), (122, 665483), (142, 571753), (182, 446093), (206, 394121), (427, 190138), (497, 163358), (721, 112606), (793, 102382), (854, 95069), (923, 87962), (994, 81679), (1339, 60634), (1442, 56303), (1586, 51191), (1846, 43981), (2678, 30317), (4331, 18746), (5551, 14626), (6283, 12922), (6461, 12566), (7313, 11102), (8662, 9373)]