205310960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{461}}^1$

素因数の和:786

約数の個数: 80

約数和(自身を含む): 505280160

約数和(自身を除く): 299969200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 293, 304, 380, 461, 586, 760, 922, 1172, 1465, 1520, 1844, 2305, 2344, 2930, 3688, 4610, 4688, 5567, 5860, 7376, 8759, 9220, 11134, 11720, 17518, 18440, 22268, 23440, 27835, 35036, 36880, 43795, 44536, 55670, 70072, 87590, 89072, 111340, 135073, 140144, 175180, 222680, 270146, 350360, 445360, 540292, 675365, 700720, 1080584, 1350730, 2161168, 2566387, 2701460, 5132774, 5402920, 10265548, 10805840, 12831935, 20531096, 25663870, 41062192, 51327740, 102655480, 205310960]

約数ペア:

[(1, 205310960), (2, 102655480), (4, 51327740), (5, 41062192), (8, 25663870), (10, 20531096), (16, 12831935), (19, 10805840), (20, 10265548), (38, 5402920), (40, 5132774), (76, 2701460), (80, 2566387), (95, 2161168), (152, 1350730), (190, 1080584), (293, 700720), (304, 675365), (380, 540292), (461, 445360), (586, 350360), (760, 270146), (922, 222680), (1172, 175180), (1465, 140144), (1520, 135073), (1844, 111340), (2305, 89072), (2344, 87590), (2930, 70072), (3688, 55670), (4610, 44536), (4688, 43795), (5567, 36880), (5860, 35036), (7376, 27835), (8759, 23440), (9220, 22268), (11134, 18440), (11720, 17518)]