13259780

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1621}}^1$

素因数の和:2039

約数の個数: 24

約数和(自身を含む): 27930840

約数和(自身を除く): 14671060

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1621, 1636, 2045, 3242, 4090, 6484, 8105, 8180, 16210, 32420, 662989, 1325978, 2651956, 3314945, 6629890, 13259780]

約数ペア:

[(1, 13259780), (2, 6629890), (4, 3314945), (5, 2651956), (10, 1325978), (20, 662989), (409, 32420), (818, 16210), (1621, 8180), (1636, 8105), (2045, 6484), (3242, 4090)]