51942500

素因数分解:

$2^2\times 5^4\times {\mathrm{79}}^1\times {\mathrm{263}}^1$

素因数の和:366

約数の個数: 60

約数和(自身を含む): 115463040

約数和(自身を除く): 63520540

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 125, 158, 250, 263, 316, 395, 500, 526, 625, 790, 1052, 1250, 1315, 1580, 1975, 2500, 2630, 3950, 5260, 6575, 7900, 9875, 13150, 19750, 20777, 26300, 32875, 39500, 41554, 49375, 65750, 83108, 98750, 103885, 131500, 164375, 197500, 207770, 328750, 415540, 519425, 657500, 1038850, 2077700, 2597125, 5194250, 10388500, 12985625, 25971250, 51942500]

約数ペア:

[(1, 51942500), (2, 25971250), (4, 12985625), (5, 10388500), (10, 5194250), (20, 2597125), (25, 2077700), (50, 1038850), (79, 657500), (100, 519425), (125, 415540), (158, 328750), (250, 207770), (263, 197500), (316, 164375), (395, 131500), (500, 103885), (526, 98750), (625, 83108), (790, 65750), (1052, 49375), (1250, 41554), (1315, 39500), (1580, 32875), (1975, 26300), (2500, 20777), (2630, 19750), (3950, 13150), (5260, 9875), (6575, 7900)]