13129240

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{857}}^1$

素因数の和:1251

約数の個数: 32

約数和(自身を含む): 29652480

約数和(自身を除く): 16523240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 857, 1532, 1714, 1915, 3064, 3428, 3830, 4285, 6856, 7660, 8570, 15320, 17140, 34280, 328231, 656462, 1312924, 1641155, 2625848, 3282310, 6564620, 13129240]

約数ペア:

[(1, 13129240), (2, 6564620), (4, 3282310), (5, 2625848), (8, 1641155), (10, 1312924), (20, 656462), (40, 328231), (383, 34280), (766, 17140), (857, 15320), (1532, 8570), (1714, 7660), (1915, 6856), (3064, 4285), (3428, 3830)]