13644440

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1297}}^1$

素因数の和:1571

約数の個数: 32

約数和(自身を含む): 30840480

約数和(自身を除く): 17196040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1297, 1315, 2104, 2594, 2630, 5188, 5260, 6485, 10376, 10520, 12970, 25940, 51880, 341111, 682222, 1364444, 1705555, 2728888, 3411110, 6822220, 13644440]

約数ペア:

[(1, 13644440), (2, 6822220), (4, 3411110), (5, 2728888), (8, 1705555), (10, 1364444), (20, 682222), (40, 341111), (263, 51880), (526, 25940), (1052, 12970), (1297, 10520), (1315, 10376), (2104, 6485), (2594, 5260), (2630, 5188)]