81304100

素因数分解:

$2^2\times 5^2\times {\mathrm{813041}}^1$

素因数の和:813055

約数の個数: 18

約数和(自身を含む): 176430114

約数和(自身を除く): 95126014

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 813041, 1626082, 3252164, 4065205, 8130410, 16260820, 20326025, 40652050, 81304100]

約数ペア:

[(1, 81304100), (2, 40652050), (4, 20326025), (5, 16260820), (10, 8130410), (20, 4065205), (25, 3252164), (50, 1626082), (100, 813041)]