678478518

素因数分解:

$2^1\times 3^4\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{863}}^1$

素因数の和:1111

約数の個数: 80

約数和(自身を含む): 1595759616

約数和(自身を除く): 917281098

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 81, 138, 162, 207, 211, 414, 422, 621, 633, 863, 1242, 1266, 1726, 1863, 1899, 2589, 3726, 3798, 4853, 5178, 5697, 7767, 9706, 11394, 14559, 15534, 17091, 19849, 23301, 29118, 34182, 39698, 43677, 46602, 59547, 69903, 87354, 119094, 131031, 139806, 178641, 182093, 262062, 357282, 364186, 393093, 535923, 546279, 786186, 1071846, 1092558, 1607769, 1638837, 3215538, 3277674, 4188139, 4916511, 8376278, 9833022, 12564417, 14749533, 25128834, 29499066, 37693251, 75386502, 113079753, 226159506, 339239259, 678478518]

約数ペア:

[(1, 678478518), (2, 339239259), (3, 226159506), (6, 113079753), (9, 75386502), (18, 37693251), (23, 29499066), (27, 25128834), (46, 14749533), (54, 12564417), (69, 9833022), (81, 8376278), (138, 4916511), (162, 4188139), (207, 3277674), (211, 3215538), (414, 1638837), (422, 1607769), (621, 1092558), (633, 1071846), (863, 786186), (1242, 546279), (1266, 535923), (1726, 393093), (1863, 364186), (1899, 357282), (2589, 262062), (3726, 182093), (3798, 178641), (4853, 139806), (5178, 131031), (5697, 119094), (7767, 87354), (9706, 69903), (11394, 59547), (14559, 46602), (15534, 43677), (17091, 39698), (19849, 34182), (23301, 29118)]