813140

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{373}}^1$

素因数の和:491

約数の個数: 24

約数和(自身を含む): 1727880

約数和(自身を除く): 914740

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 373, 436, 545, 746, 1090, 1492, 1865, 2180, 3730, 7460, 40657, 81314, 162628, 203285, 406570, 813140]

約数ペア:

[(1, 813140), (2, 406570), (4, 203285), (5, 162628), (10, 81314), (20, 40657), (109, 7460), (218, 3730), (373, 2180), (436, 1865), (545, 1492), (746, 1090)]