20647728

素因数分解:

$2^4\times 3^2\times {\mathrm{143387}}^1$

素因数の和:143401

約数の個数: 30

約数和(自身を含む): 57785364

約数和(自身を除く): 37137636

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 143387, 286774, 430161, 573548, 860322, 1147096, 1290483, 1720644, 2294192, 2580966, 3441288, 5161932, 6882576, 10323864, 20647728]

約数ペア:

[(1, 20647728), (2, 10323864), (3, 6882576), (4, 5161932), (6, 3441288), (8, 2580966), (9, 2294192), (12, 1720644), (16, 1290483), (18, 1147096), (24, 860322), (36, 573548), (48, 430161), (72, 286774), (144, 143387)]