2804500

素因数分解:

$2^2\times 5^3\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:169

約数の個数: 48

約数和(自身を含む): 6289920

約数和(自身を除く): 3485420

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 79, 100, 125, 142, 158, 250, 284, 316, 355, 395, 500, 710, 790, 1420, 1580, 1775, 1975, 3550, 3950, 5609, 7100, 7900, 8875, 9875, 11218, 17750, 19750, 22436, 28045, 35500, 39500, 56090, 112180, 140225, 280450, 560900, 701125, 1402250, 2804500]

約数ペア:

[(1, 2804500), (2, 1402250), (4, 701125), (5, 560900), (10, 280450), (20, 140225), (25, 112180), (50, 56090), (71, 39500), (79, 35500), (100, 28045), (125, 22436), (142, 19750), (158, 17750), (250, 11218), (284, 9875), (316, 8875), (355, 7900), (395, 7100), (500, 5609), (710, 3950), (790, 3550), (1420, 1975), (1580, 1775)]