40800280

素因数分解:

$2^3\times 5^1\times {\mathrm{1020007}}^1$

素因数の和:1020018

約数の個数: 16

約数和(自身を含む): 91800720

約数和(自身を除く): 51000440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1020007, 2040014, 4080028, 5100035, 8160056, 10200070, 20400140, 40800280]

約数ペア:

[(1, 40800280), (2, 20400140), (4, 10200070), (5, 8160056), (8, 5100035), (10, 4080028), (20, 2040014), (40, 1020007)]