6520720

素因数分解:

$2^4\times 5^1\times {\mathrm{81509}}^1$

素因数の和:81522

約数の個数: 20

約数和(自身を含む): 15160860

約数和(自身を除く): 8640140

約数列:

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

約数ペア:

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