156908016740

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{80880421}}^1$

素因数の和:80880527

約数の個数: 24

約数和(自身を含む): 332903816952

約数和(自身を除く): 175995800212

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 80880421, 161760842, 323521684, 404402105, 808804210, 1617608420, 7845400837, 15690801674, 31381603348, 39227004185, 78454008370, 156908016740]

約数ペア:

[(1, 156908016740), (2, 78454008370), (4, 39227004185), (5, 31381603348), (10, 15690801674), (20, 7845400837), (97, 1617608420), (194, 808804210), (388, 404402105), (485, 323521684), (970, 161760842), (1940, 80880421)]