20780400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{17317}}^1$

素因数の和:17338

約数の個数: 60

約数和(自身を含む): 66570392

約数和(自身を除く): 45789992

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 150, 200, 240, 300, 400, 600, 1200, 17317, 34634, 51951, 69268, 86585, 103902, 138536, 173170, 207804, 259755, 277072, 346340, 415608, 432925, 519510, 692680, 831216, 865850, 1039020, 1298775, 1385360, 1731700, 2078040, 2597550, 3463400, 4156080, 5195100, 6926800, 10390200, 20780400]

約数ペア:

[(1, 20780400), (2, 10390200), (3, 6926800), (4, 5195100), (5, 4156080), (6, 3463400), (8, 2597550), (10, 2078040), (12, 1731700), (15, 1385360), (16, 1298775), (20, 1039020), (24, 865850), (25, 831216), (30, 692680), (40, 519510), (48, 432925), (50, 415608), (60, 346340), (75, 277072), (80, 259755), (100, 207804), (120, 173170), (150, 138536), (200, 103902), (240, 86585), (300, 69268), (400, 51951), (600, 34634), (1200, 17317)]