80821708

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{166987}}^1$

素因数の和:167013

約数の個数: 18

約数和(自身を含む): 155465828

約数和(自身を除く): 74644120

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 166987, 333974, 667948, 1836857, 3673714, 7347428, 20205427, 40410854, 80821708]

約数ペア:

[(1, 80821708), (2, 40410854), (4, 20205427), (11, 7347428), (22, 3673714), (44, 1836857), (121, 667948), (242, 333974), (484, 166987)]