20584400

素因数分解:

$2^4\times 5^2\times {\mathrm{51461}}^1$

素因数の和:51479

約数の個数: 30

約数和(自身を含む): 49454982

約数和(自身を除く): 28870582

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51461, 102922, 205844, 257305, 411688, 514610, 823376, 1029220, 1286525, 2058440, 2573050, 4116880, 5146100, 10292200, 20584400]

約数ペア:

[(1, 20584400), (2, 10292200), (4, 5146100), (5, 4116880), (8, 2573050), (10, 2058440), (16, 1286525), (20, 1029220), (25, 823376), (40, 514610), (50, 411688), (80, 257305), (100, 205844), (200, 102922), (400, 51461)]