28510520

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{1861}}^1$

素因数の和:2255

約数の個数: 32

約数和(自身を含む): 64350720

約数和(自身を除く): 35840200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1532, 1861, 1915, 3064, 3722, 3830, 7444, 7660, 9305, 14888, 15320, 18610, 37220, 74440, 712763, 1425526, 2851052, 3563815, 5702104, 7127630, 14255260, 28510520]

約数ペア:

[(1, 28510520), (2, 14255260), (4, 7127630), (5, 5702104), (8, 3563815), (10, 2851052), (20, 1425526), (40, 712763), (383, 74440), (766, 37220), (1532, 18610), (1861, 15320), (1915, 14888), (3064, 9305), (3722, 7660), (3830, 7444)]