17980493780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10101401}}^1$

素因数の和:10101499

約数の個数: 24

約数和(自身を含む): 38183299560

約数和(自身を除く): 20202805780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10101401, 20202802, 40405604, 50507005, 101014010, 202028020, 899024689, 1798049378, 3596098756, 4495123445, 8990246890, 17980493780]

約数ペア:

[(1, 17980493780), (2, 8990246890), (4, 4495123445), (5, 3596098756), (10, 1798049378), (20, 899024689), (89, 202028020), (178, 101014010), (356, 50507005), (445, 40405604), (890, 20202802), (1780, 10101401)]