51528560

素因数分解:

$2^4\times 5^1\times {\mathrm{644107}}^1$

素因数の和:644120

約数の個数: 20

約数和(自身を含む): 119804088

約数和(自身を除く): 68275528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 644107, 1288214, 2576428, 3220535, 5152856, 6441070, 10305712, 12882140, 25764280, 51528560]

約数ペア:

[(1, 51528560), (2, 25764280), (4, 12882140), (5, 10305712), (8, 6441070), (10, 5152856), (16, 3220535), (20, 2576428), (40, 1288214), (80, 644107)]