213048100

素因数分解:

$2^2\times 5^2\times {\mathrm{409}}^1\times {\mathrm{5209}}^1$

素因数の和:5632

約数の個数: 36

約数和(自身を含む): 463533700

約数和(自身を除く): 250485600

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 409, 818, 1636, 2045, 4090, 5209, 8180, 10225, 10418, 20450, 20836, 26045, 40900, 52090, 104180, 130225, 260450, 520900, 2130481, 4260962, 8521924, 10652405, 21304810, 42609620, 53262025, 106524050, 213048100]

約数ペア:

[(1, 213048100), (2, 106524050), (4, 53262025), (5, 42609620), (10, 21304810), (20, 10652405), (25, 8521924), (50, 4260962), (100, 2130481), (409, 520900), (818, 260450), (1636, 130225), (2045, 104180), (4090, 52090), (5209, 40900), (8180, 26045), (10225, 20836), (10418, 20450)]