39975640

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10303}}^1$

素因数の和:10411

約数の個数: 32

約数和(自身を含む): 90881280

約数和(自身を除く): 50905640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 10303, 20606, 41212, 51515, 82424, 103030, 206060, 412120, 999391, 1998782, 3997564, 4996955, 7995128, 9993910, 19987820, 39975640]

約数ペア:

[(1, 39975640), (2, 19987820), (4, 9993910), (5, 7995128), (8, 4996955), (10, 3997564), (20, 1998782), (40, 999391), (97, 412120), (194, 206060), (388, 103030), (485, 82424), (776, 51515), (970, 41212), (1940, 20606), (3880, 10303)]