20755000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{593}}^1$

素因数の和:626

約数の個数: 80

約数和(自身を含む): 55669680

約数和(自身を除く): 34914680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 593, 625, 700, 875, 1000, 1186, 1250, 1400, 1750, 2372, 2500, 2965, 3500, 4151, 4375, 4744, 5000, 5930, 7000, 8302, 8750, 11860, 14825, 16604, 17500, 20755, 23720, 29650, 33208, 35000, 41510, 59300, 74125, 83020, 103775, 118600, 148250, 166040, 207550, 296500, 370625, 415100, 518875, 593000, 741250, 830200, 1037750, 1482500, 2075500, 2594375, 2965000, 4151000, 5188750, 10377500, 20755000]

約数ペア:

[(1, 20755000), (2, 10377500), (4, 5188750), (5, 4151000), (7, 2965000), (8, 2594375), (10, 2075500), (14, 1482500), (20, 1037750), (25, 830200), (28, 741250), (35, 593000), (40, 518875), (50, 415100), (56, 370625), (70, 296500), (100, 207550), (125, 166040), (140, 148250), (175, 118600), (200, 103775), (250, 83020), (280, 74125), (350, 59300), (500, 41510), (593, 35000), (625, 33208), (700, 29650), (875, 23720), (1000, 20755), (1186, 17500), (1250, 16604), (1400, 14825), (1750, 11860), (2372, 8750), (2500, 8302), (2965, 7000), (3500, 5930), (4151, 5000), (4375, 4744)]