20195540

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7951}}^1$

素因数の和:8087

約数の個数: 24

約数和(自身を含む): 42749952

約数和(自身を除く): 22554412

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 7951, 15902, 31804, 39755, 79510, 159020, 1009777, 2019554, 4039108, 5048885, 10097770, 20195540]

約数ペア:

[(1, 20195540), (2, 10097770), (4, 5048885), (5, 4039108), (10, 2019554), (20, 1009777), (127, 159020), (254, 79510), (508, 39755), (635, 31804), (1270, 15902), (2540, 7951)]