28755640

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{1877}}^1$

素因数の和:2271

約数の個数: 32

約数和(自身を含む): 64903680

約数和(自身を除く): 36148040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1532, 1877, 1915, 3064, 3754, 3830, 7508, 7660, 9385, 15016, 15320, 18770, 37540, 75080, 718891, 1437782, 2875564, 3594455, 5751128, 7188910, 14377820, 28755640]

約数ペア:

[(1, 28755640), (2, 14377820), (4, 7188910), (5, 5751128), (8, 3594455), (10, 2875564), (20, 1437782), (40, 718891), (383, 75080), (766, 37540), (1532, 18770), (1877, 15320), (1915, 15016), (3064, 9385), (3754, 7660), (3830, 7508)]