80821998

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{63241}}^1$

素因数の和:63320

約数の個数: 24

約数和(自身を含む): 177583536

約数和(自身を除く): 96761538

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 63241, 126482, 189723, 379446, 569169, 1138338, 4490111, 8980222, 13470333, 26940666, 40410999, 80821998]

約数ペア:

[(1, 80821998), (2, 40410999), (3, 26940666), (6, 13470333), (9, 8980222), (18, 4490111), (71, 1138338), (142, 569169), (213, 379446), (426, 189723), (639, 126482), (1278, 63241)]