20890352

素因数分解:

$2^4\times 7^1\times {\mathrm{383}}^1\times {\mathrm{487}}^1$

素因数の和:885

約数の個数: 40

約数和(自身を含む): 46473216

約数和(自身を除く): 25582864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 383, 487, 766, 974, 1532, 1948, 2681, 3064, 3409, 3896, 5362, 6128, 6818, 7792, 10724, 13636, 21448, 27272, 42896, 54544, 186521, 373042, 746084, 1305647, 1492168, 2611294, 2984336, 5222588, 10445176, 20890352]

約数ペア:

[(1, 20890352), (2, 10445176), (4, 5222588), (7, 2984336), (8, 2611294), (14, 1492168), (16, 1305647), (28, 746084), (56, 373042), (112, 186521), (383, 54544), (487, 42896), (766, 27272), (974, 21448), (1532, 13636), (1948, 10724), (2681, 7792), (3064, 6818), (3409, 6128), (3896, 5362)]