66869816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{787}}^1$

素因数の和:868

約数の個数: 64

約数和(自身を含む): 145622400

約数和(自身を除く): 78752584

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 43, 52, 76, 86, 104, 152, 172, 247, 344, 494, 559, 787, 817, 988, 1118, 1574, 1634, 1976, 2236, 3148, 3268, 4472, 6296, 6536, 10231, 10621, 14953, 20462, 21242, 29906, 33841, 40924, 42484, 59812, 67682, 81848, 84968, 119624, 135364, 194389, 270728, 388778, 439933, 642979, 777556, 879866, 1285958, 1555112, 1759732, 2571916, 3519464, 5143832, 8358727, 16717454, 33434908, 66869816]

約数ペア:

[(1, 66869816), (2, 33434908), (4, 16717454), (8, 8358727), (13, 5143832), (19, 3519464), (26, 2571916), (38, 1759732), (43, 1555112), (52, 1285958), (76, 879866), (86, 777556), (104, 642979), (152, 439933), (172, 388778), (247, 270728), (344, 194389), (494, 135364), (559, 119624), (787, 84968), (817, 81848), (988, 67682), (1118, 59812), (1574, 42484), (1634, 40924), (1976, 33841), (2236, 29906), (3148, 21242), (3268, 20462), (4472, 14953), (6296, 10621), (6536, 10231)]