81805768

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{367}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 178848000

約数和(自身を除く): 97042232

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 136, 149, 187, 298, 367, 374, 596, 734, 748, 1192, 1468, 1496, 1639, 2533, 2936, 3278, 4037, 5066, 6239, 6556, 8074, 10132, 12478, 13112, 16148, 20264, 24956, 27863, 32296, 49912, 54683, 55726, 68629, 109366, 111452, 137258, 218732, 222904, 274516, 437464, 549032, 601513, 929611, 1203026, 1859222, 2406052, 3718444, 4812104, 7436888, 10225721, 20451442, 40902884, 81805768]

約数ペア:

[(1, 81805768), (2, 40902884), (4, 20451442), (8, 10225721), (11, 7436888), (17, 4812104), (22, 3718444), (34, 2406052), (44, 1859222), (68, 1203026), (88, 929611), (136, 601513), (149, 549032), (187, 437464), (298, 274516), (367, 222904), (374, 218732), (596, 137258), (734, 111452), (748, 109366), (1192, 68629), (1468, 55726), (1496, 54683), (1639, 49912), (2533, 32296), (2936, 27863), (3278, 24956), (4037, 20264), (5066, 16148), (6239, 13112), (6556, 12478), (8074, 10132)]