161982760

素因数分解:

$2^3\times 5^1\times {\mathrm{4049569}}^1$

素因数の和:4049580

約数の個数: 16

約数和(自身を含む): 364461300

約数和(自身を除く): 202478540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4049569, 8099138, 16198276, 20247845, 32396552, 40495690, 80991380, 161982760]

約数ペア:

[(1, 161982760), (2, 80991380), (4, 40495690), (5, 32396552), (8, 20247845), (10, 16198276), (20, 8099138), (40, 4049569)]