28820816

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{12959}}^1$

素因数の和:13106

約数の個数: 20

約数和(自身を含む): 56246400

約数和(自身を除く): 27425584

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 12959, 25918, 51836, 103672, 207344, 1801301, 3602602, 7205204, 14410408, 28820816]

約数ペア:

[(1, 28820816), (2, 14410408), (4, 7205204), (8, 3602602), (16, 1801301), (139, 207344), (278, 103672), (556, 51836), (1112, 25918), (2224, 12959)]