20830400

素因数分解:

$2^6\times 5^2\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:346

約数の個数: 84

約数和(自身を含む): 52535328

約数和(自身を除く): 31704928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 47, 50, 64, 80, 94, 100, 160, 188, 200, 235, 277, 320, 376, 400, 470, 554, 752, 800, 940, 1108, 1175, 1385, 1504, 1600, 1880, 2216, 2350, 2770, 3008, 3760, 4432, 4700, 5540, 6925, 7520, 8864, 9400, 11080, 13019, 13850, 15040, 17728, 18800, 22160, 26038, 27700, 37600, 44320, 52076, 55400, 65095, 75200, 88640, 104152, 110800, 130190, 208304, 221600, 260380, 325475, 416608, 443200, 520760, 650950, 833216, 1041520, 1301900, 2083040, 2603800, 4166080, 5207600, 10415200, 20830400]

約数ペア:

[(1, 20830400), (2, 10415200), (4, 5207600), (5, 4166080), (8, 2603800), (10, 2083040), (16, 1301900), (20, 1041520), (25, 833216), (32, 650950), (40, 520760), (47, 443200), (50, 416608), (64, 325475), (80, 260380), (94, 221600), (100, 208304), (160, 130190), (188, 110800), (200, 104152), (235, 88640), (277, 75200), (320, 65095), (376, 55400), (400, 52076), (470, 44320), (554, 37600), (752, 27700), (800, 26038), (940, 22160), (1108, 18800), (1175, 17728), (1385, 15040), (1504, 13850), (1600, 13019), (1880, 11080), (2216, 9400), (2350, 8864), (2770, 7520), (3008, 6925), (3760, 5540), (4432, 4700)]