80021578

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:431

約数の個数: 64

約数和(自身を含む): 158135040

約数和(自身を除く): 78113462

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 73, 91, 133, 146, 182, 247, 266, 317, 494, 511, 634, 949, 1022, 1387, 1729, 1898, 2219, 2774, 3458, 4121, 4438, 6023, 6643, 8242, 9709, 12046, 13286, 18031, 19418, 23141, 28847, 36062, 42161, 46282, 57694, 78299, 84322, 126217, 156598, 161987, 252434, 300833, 323974, 439679, 548093, 601666, 879358, 1096186, 2105831, 3077753, 4211662, 5715827, 6155506, 11431654, 40010789, 80021578]

約数ペア:

[(1, 80021578), (2, 40010789), (7, 11431654), (13, 6155506), (14, 5715827), (19, 4211662), (26, 3077753), (38, 2105831), (73, 1096186), (91, 879358), (133, 601666), (146, 548093), (182, 439679), (247, 323974), (266, 300833), (317, 252434), (494, 161987), (511, 156598), (634, 126217), (949, 84322), (1022, 78299), (1387, 57694), (1729, 46282), (1898, 42161), (2219, 36062), (2774, 28847), (3458, 23141), (4121, 19418), (4438, 18031), (6023, 13286), (6643, 12046), (8242, 9709)]