28009724

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 53978400

約数和(自身を除く): 25968676

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 89, 101, 164, 178, 202, 356, 404, 779, 1558, 1691, 1919, 3116, 3382, 3649, 3838, 4141, 6764, 7298, 7676, 8282, 8989, 14596, 16564, 17978, 35956, 69331, 78679, 138662, 157358, 170791, 277324, 314716, 341582, 368549, 683164, 737098, 1474196, 7002431, 14004862, 28009724]

約数ペア:

[(1, 28009724), (2, 14004862), (4, 7002431), (19, 1474196), (38, 737098), (41, 683164), (76, 368549), (82, 341582), (89, 314716), (101, 277324), (164, 170791), (178, 157358), (202, 138662), (356, 78679), (404, 69331), (779, 35956), (1558, 17978), (1691, 16564), (1919, 14596), (3116, 8989), (3382, 8282), (3649, 7676), (3838, 7298), (4141, 6764)]