81006904

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{313}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 177020640

約数和(自身を除く): 96013736

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 136, 173, 187, 313, 346, 374, 626, 692, 748, 1252, 1384, 1496, 1903, 2504, 2941, 3443, 3806, 5321, 5882, 6886, 7612, 10642, 11764, 13772, 15224, 21284, 23528, 27544, 32351, 42568, 54149, 58531, 64702, 108298, 117062, 129404, 216596, 234124, 258808, 433192, 468248, 595639, 920533, 1191278, 1841066, 2382556, 3682132, 4765112, 7364264, 10125863, 20251726, 40503452, 81006904]

約数ペア:

[(1, 81006904), (2, 40503452), (4, 20251726), (8, 10125863), (11, 7364264), (17, 4765112), (22, 3682132), (34, 2382556), (44, 1841066), (68, 1191278), (88, 920533), (136, 595639), (173, 468248), (187, 433192), (313, 258808), (346, 234124), (374, 216596), (626, 129404), (692, 117062), (748, 108298), (1252, 64702), (1384, 58531), (1496, 54149), (1903, 42568), (2504, 32351), (2941, 27544), (3443, 23528), (3806, 21284), (5321, 15224), (5882, 13772), (6886, 11764), (7612, 10642)]