2155500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{479}}^1$

素因数の和:504

約数の個数: 72

約数和(自身を含む): 6814080

約数和(自身を除く): 4658580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 479, 500, 750, 900, 958, 1125, 1437, 1500, 1916, 2250, 2395, 2874, 4311, 4500, 4790, 5748, 7185, 8622, 9580, 11975, 14370, 17244, 21555, 23950, 28740, 35925, 43110, 47900, 59875, 71850, 86220, 107775, 119750, 143700, 179625, 215550, 239500, 359250, 431100, 538875, 718500, 1077750, 2155500]

約数ペア:

[(1, 2155500), (2, 1077750), (3, 718500), (4, 538875), (5, 431100), (6, 359250), (9, 239500), (10, 215550), (12, 179625), (15, 143700), (18, 119750), (20, 107775), (25, 86220), (30, 71850), (36, 59875), (45, 47900), (50, 43110), (60, 35925), (75, 28740), (90, 23950), (100, 21555), (125, 17244), (150, 14370), (180, 11975), (225, 9580), (250, 8622), (300, 7185), (375, 5748), (450, 4790), (479, 4500), (500, 4311), (750, 2874), (900, 2395), (958, 2250), (1125, 1916), (1437, 1500)]