26313680

素因数分解:

$2^4\times 5^1\times {\mathrm{328921}}^1$

素因数の和:328934

約数の個数: 20

約数和(自身を含む): 61179492

約数和(自身を除く): 34865812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 328921, 657842, 1315684, 1644605, 2631368, 3289210, 5262736, 6578420, 13156840, 26313680]

約数ペア:

[(1, 26313680), (2, 13156840), (4, 6578420), (5, 5262736), (8, 3289210), (10, 2631368), (16, 1644605), (20, 1315684), (40, 657842), (80, 328921)]