2118500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 4892160

約数和(自身を除く): 2773660

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 223, 250, 380, 446, 475, 500, 892, 950, 1115, 1900, 2230, 2375, 4237, 4460, 4750, 5575, 8474, 9500, 11150, 16948, 21185, 22300, 27875, 42370, 55750, 84740, 105925, 111500, 211850, 423700, 529625, 1059250, 2118500]

約数ペア:

[(1, 2118500), (2, 1059250), (4, 529625), (5, 423700), (10, 211850), (19, 111500), (20, 105925), (25, 84740), (38, 55750), (50, 42370), (76, 27875), (95, 22300), (100, 21185), (125, 16948), (190, 11150), (223, 9500), (250, 8474), (380, 5575), (446, 4750), (475, 4460), (500, 4237), (892, 2375), (950, 2230), (1115, 1900)]