25812520

素因数分解:

$2^3\times 5^1\times {\mathrm{645313}}^1$

素因数の和:645324

約数の個数: 16

約数和(自身を含む): 58078260

約数和(自身を除く): 32265740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 645313, 1290626, 2581252, 3226565, 5162504, 6453130, 12906260, 25812520]

約数ペア:

[(1, 25812520), (2, 12906260), (4, 6453130), (5, 5162504), (8, 3226565), (10, 2581252), (20, 1290626), (40, 645313)]