199151080

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{12541}}^1$

素因数の和:12949

約数の個数: 32

約数和(自身を含む): 449254440

約数和(自身を除く): 250103360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 7940, 12541, 15880, 25082, 50164, 62705, 100328, 125410, 250820, 501640, 4978777, 9957554, 19915108, 24893885, 39830216, 49787770, 99575540, 199151080]

約数ペア:

[(1, 199151080), (2, 99575540), (4, 49787770), (5, 39830216), (8, 24893885), (10, 19915108), (20, 9957554), (40, 4978777), (397, 501640), (794, 250820), (1588, 125410), (1985, 100328), (3176, 62705), (3970, 50164), (7940, 25082), (12541, 15880)]