78495260

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{36007}}^1$

素因数の和:36125

約数の個数: 24

約数和(自身を含む): 166356960

約数和(自身を除く): 87861700

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 36007, 72014, 144028, 180035, 360070, 720140, 3924763, 7849526, 15699052, 19623815, 39247630, 78495260]

約数ペア:

[(1, 78495260), (2, 39247630), (4, 19623815), (5, 15699052), (10, 7849526), (20, 3924763), (109, 720140), (218, 360070), (436, 180035), (545, 144028), (1090, 72014), (2180, 36007)]