39940816

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{17959}}^1$

素因数の和:18106

約数の個数: 20

約数和(自身を含む): 77946400

約数和(自身を除く): 38005584

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 17959, 35918, 71836, 143672, 287344, 2496301, 4992602, 9985204, 19970408, 39940816]

約数ペア:

[(1, 39940816), (2, 19970408), (4, 9985204), (8, 4992602), (16, 2496301), (139, 287344), (278, 143672), (556, 71836), (1112, 35918), (2224, 17959)]