180278320

素因数分解:

$2^4\times 5^1\times {\mathrm{2253479}}^1$

素因数の和:2253492

約数の個数: 20

約数和(自身を含む): 419147280

約数和(自身を除く): 238868960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2253479, 4506958, 9013916, 11267395, 18027832, 22534790, 36055664, 45069580, 90139160, 180278320]

約数ペア:

[(1, 180278320), (2, 90139160), (4, 45069580), (5, 36055664), (8, 22534790), (10, 18027832), (16, 11267395), (20, 9013916), (40, 4506958), (80, 2253479)]