28709280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19937}}^1$

素因数の和:19958

約数の個数: 72

約数和(自身を含む): 97975332

約数和(自身を除く): 69266052

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 19937, 39874, 59811, 79748, 99685, 119622, 159496, 179433, 199370, 239244, 299055, 318992, 358866, 398740, 478488, 598110, 637984, 717732, 797480, 897165, 956976, 1196220, 1435464, 1594960, 1794330, 1913952, 2392440, 2870928, 3189920, 3588660, 4784880, 5741856, 7177320, 9569760, 14354640, 28709280]

約数ペア:

[(1, 28709280), (2, 14354640), (3, 9569760), (4, 7177320), (5, 5741856), (6, 4784880), (8, 3588660), (9, 3189920), (10, 2870928), (12, 2392440), (15, 1913952), (16, 1794330), (18, 1594960), (20, 1435464), (24, 1196220), (30, 956976), (32, 897165), (36, 797480), (40, 717732), (45, 637984), (48, 598110), (60, 478488), (72, 398740), (80, 358866), (90, 318992), (96, 299055), (120, 239244), (144, 199370), (160, 179433), (180, 159496), (240, 119622), (288, 99685), (360, 79748), (480, 59811), (720, 39874), (1440, 19937)]