80421500

素因数分解:

$2^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{3923}}^1$

素因数の和:3983

約数の個数: 48

約数和(自身を含む): 179970336

約数和(自身を除く): 99548836

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 410, 500, 820, 1025, 2050, 3923, 4100, 5125, 7846, 10250, 15692, 19615, 20500, 39230, 78460, 98075, 160843, 196150, 321686, 392300, 490375, 643372, 804215, 980750, 1608430, 1961500, 3216860, 4021075, 8042150, 16084300, 20105375, 40210750, 80421500]

約数ペア:

[(1, 80421500), (2, 40210750), (4, 20105375), (5, 16084300), (10, 8042150), (20, 4021075), (25, 3216860), (41, 1961500), (50, 1608430), (82, 980750), (100, 804215), (125, 643372), (164, 490375), (205, 392300), (250, 321686), (410, 196150), (500, 160843), (820, 98075), (1025, 78460), (2050, 39230), (3923, 20500), (4100, 19615), (5125, 15692), (7846, 10250)]