51625040

素因数分解:

$2^4\times 5^1\times {\mathrm{645313}}^1$

素因数の和:645326

約数の個数: 20

約数和(自身を含む): 120028404

約数和(自身を除く): 68403364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 645313, 1290626, 2581252, 3226565, 5162504, 6453130, 10325008, 12906260, 25812520, 51625040]

約数ペア:

[(1, 51625040), (2, 25812520), (4, 12906260), (5, 10325008), (8, 6453130), (10, 5162504), (16, 3226565), (20, 2581252), (40, 1290626), (80, 645313)]