139931278

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{21601}}^1$

素因数の和:21723

約数の個数: 16

約数和(自身を含む): 217748160

約数和(自身を除く): 77816882

約数列:

[1, 2, 41, 79, 82, 158, 3239, 6478, 21601, 43202, 885641, 1706479, 1771282, 3412958, 69965639, 139931278]

約数ペア:

[(1, 139931278), (2, 69965639), (41, 3412958), (79, 1771282), (82, 1706479), (158, 885641), (3239, 43202), (6478, 21601)]