13041440

素因数分解:

$2^5\times 5^1\times {\mathrm{81509}}^1$

素因数の和:81524

約数の個数: 24

約数和(自身を含む): 30810780

約数和(自身を除く): 17769340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 81509, 163018, 326036, 407545, 652072, 815090, 1304144, 1630180, 2608288, 3260360, 6520720, 13041440]

約数ペア:

[(1, 13041440), (2, 6520720), (4, 3260360), (5, 2608288), (8, 1630180), (10, 1304144), (16, 815090), (20, 652072), (32, 407545), (40, 326036), (80, 163018), (160, 81509)]