20180128076

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3739831}}^1$

素因数の和:3739925

約数の個数: 24

約数和(自身を含む): 37697506560

約数和(自身を除く): 17517378484

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 1349, 2698, 5396, 3739831, 7479662, 14959324, 71056789, 142113578, 265528001, 284227156, 531056002, 1062112004, 5045032019, 10090064038, 20180128076]

約数ペア:

[(1, 20180128076), (2, 10090064038), (4, 5045032019), (19, 1062112004), (38, 531056002), (71, 284227156), (76, 265528001), (142, 142113578), (284, 71056789), (1349, 14959324), (2698, 7479662), (5396, 3739831)]