247485590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{20641}}^1$

素因数の和:20768

約数の個数: 32

約数和(自身を含む): 490453920

約数和(自身を除く): 242968330

約数列:

[1, 2, 5, 10, 11, 22, 55, 109, 110, 218, 545, 1090, 1199, 2398, 5995, 11990, 20641, 41282, 103205, 206410, 227051, 454102, 1135255, 2249869, 2270510, 4499738, 11249345, 22498690, 24748559, 49497118, 123742795, 247485590]

約数ペア:

[(1, 247485590), (2, 123742795), (5, 49497118), (10, 24748559), (11, 22498690), (22, 11249345), (55, 4499738), (109, 2270510), (110, 2249869), (218, 1135255), (545, 454102), (1090, 227051), (1199, 206410), (2398, 103205), (5995, 41282), (11990, 20641)]