20319564

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{743}}^1$

素因数の和:846

約数の個数: 48

約数和(自身を含む): 49496832

約数和(自身を除く): 29177268

約数列:

[1, 2, 3, 4, 6, 12, 43, 53, 86, 106, 129, 159, 172, 212, 258, 318, 516, 636, 743, 1486, 2229, 2279, 2972, 4458, 4558, 6837, 8916, 9116, 13674, 27348, 31949, 39379, 63898, 78758, 95847, 118137, 127796, 157516, 191694, 236274, 383388, 472548, 1693297, 3386594, 5079891, 6773188, 10159782, 20319564]

約数ペア:

[(1, 20319564), (2, 10159782), (3, 6773188), (4, 5079891), (6, 3386594), (12, 1693297), (43, 472548), (53, 383388), (86, 236274), (106, 191694), (129, 157516), (159, 127796), (172, 118137), (212, 95847), (258, 78758), (318, 63898), (516, 39379), (636, 31949), (743, 27348), (1486, 13674), (2229, 9116), (2279, 8916), (2972, 6837), (4458, 4558)]