139919080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{499711}}^1$

素因数の和:499729

約数の個数: 32

約数和(自身を含む): 359792640

約数和(自身を除く): 219873560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 499711, 999422, 1998844, 2498555, 3497977, 3997688, 4997110, 6995954, 9994220, 13991908, 17489885, 19988440, 27983816, 34979770, 69959540, 139919080]

約数ペア:

[(1, 139919080), (2, 69959540), (4, 34979770), (5, 27983816), (7, 19988440), (8, 17489885), (10, 13991908), (14, 9994220), (20, 6995954), (28, 4997110), (35, 3997688), (40, 3497977), (56, 2498555), (70, 1998844), (140, 999422), (280, 499711)]