4221040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2777}}^1$

素因数の和:2809

約数の個数: 40

約数和(自身を含む): 10334160

約数和(自身を除く): 6113120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 2777, 5554, 11108, 13885, 22216, 27770, 44432, 52763, 55540, 105526, 111080, 211052, 222160, 263815, 422104, 527630, 844208, 1055260, 2110520, 4221040]

約数ペア:

[(1, 4221040), (2, 2110520), (4, 1055260), (5, 844208), (8, 527630), (10, 422104), (16, 263815), (19, 222160), (20, 211052), (38, 111080), (40, 105526), (76, 55540), (80, 52763), (95, 44432), (152, 27770), (190, 22216), (304, 13885), (380, 11108), (760, 5554), (1520, 2777)]