207812900

素因数分解:

$2^2\times 5^2\times {\mathrm{409}}^1\times {\mathrm{5081}}^1$

素因数の和:5504

約数の個数: 36

約数和(自身を含む): 452145540

約数和(自身を除く): 244332640

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 409, 818, 1636, 2045, 4090, 5081, 8180, 10162, 10225, 20324, 20450, 25405, 40900, 50810, 101620, 127025, 254050, 508100, 2078129, 4156258, 8312516, 10390645, 20781290, 41562580, 51953225, 103906450, 207812900]

約数ペア:

[(1, 207812900), (2, 103906450), (4, 51953225), (5, 41562580), (10, 20781290), (20, 10390645), (25, 8312516), (50, 4156258), (100, 2078129), (409, 508100), (818, 254050), (1636, 127025), (2045, 101620), (4090, 50810), (5081, 40900), (8180, 25405), (10162, 20450), (10225, 20324)]