19746340

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7103}}^1$

素因数の和:7251

約数の個数: 24

約数和(自身を含む): 41771520

約数和(自身を除く): 22025180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 7103, 14206, 28412, 35515, 71030, 142060, 987317, 1974634, 3949268, 4936585, 9873170, 19746340]

約数ペア:

[(1, 19746340), (2, 9873170), (4, 4936585), (5, 3949268), (10, 1974634), (20, 987317), (139, 142060), (278, 71030), (556, 35515), (695, 28412), (1390, 14206), (2780, 7103)]