78906568

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{761}}^1\times {\mathrm{997}}^1$

素因数の和:1777

約数の個数: 32

約数和(自身を含む): 159699960

約数和(自身を除く): 80793392

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 761, 997, 1522, 1994, 3044, 3988, 6088, 7976, 9893, 12961, 19786, 25922, 39572, 51844, 79144, 103688, 758717, 1517434, 3034868, 6069736, 9863321, 19726642, 39453284, 78906568]

約数ペア:

[(1, 78906568), (2, 39453284), (4, 19726642), (8, 9863321), (13, 6069736), (26, 3034868), (52, 1517434), (104, 758717), (761, 103688), (997, 79144), (1522, 51844), (1994, 39572), (3044, 25922), (3988, 19786), (6088, 12961), (7976, 9893)]