2156500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{227}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 4979520

約数和(自身を除く): 2823020

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 227, 250, 380, 454, 475, 500, 908, 950, 1135, 1900, 2270, 2375, 4313, 4540, 4750, 5675, 8626, 9500, 11350, 17252, 21565, 22700, 28375, 43130, 56750, 86260, 107825, 113500, 215650, 431300, 539125, 1078250, 2156500]

約数ペア:

[(1, 2156500), (2, 1078250), (4, 539125), (5, 431300), (10, 215650), (19, 113500), (20, 107825), (25, 86260), (38, 56750), (50, 43130), (76, 28375), (95, 22700), (100, 21565), (125, 17252), (190, 11350), (227, 9500), (250, 8626), (380, 5675), (454, 4750), (475, 4540), (500, 4313), (908, 2375), (950, 2270), (1135, 1900)]