165255352720

素因数分解:

$2^4\times 5^1\times {\mathrm{2065691909}}^1$

素因数の和:2065691922

約数の個数: 20

約数和(自身を含む): 384218695260

約数和(自身を除く): 218963342540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2065691909, 4131383818, 8262767636, 10328459545, 16525535272, 20656919090, 33051070544, 41313838180, 82627676360, 165255352720]

約数ペア:

[(1, 165255352720), (2, 82627676360), (4, 41313838180), (5, 33051070544), (8, 20656919090), (10, 16525535272), (16, 10328459545), (20, 8262767636), (40, 4131383818), (80, 2065691909)]