51563560

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{2647}}^1$

素因数の和:3145

約数の個数: 32

約数和(自身を含む): 116300160

約数和(自身を除く): 64736600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 2647, 3896, 4870, 5294, 9740, 10588, 13235, 19480, 21176, 26470, 52940, 105880, 1289089, 2578178, 5156356, 6445445, 10312712, 12890890, 25781780, 51563560]

約数ペア:

[(1, 51563560), (2, 25781780), (4, 12890890), (5, 10312712), (8, 6445445), (10, 5156356), (20, 2578178), (40, 1289089), (487, 105880), (974, 52940), (1948, 26470), (2435, 21176), (2647, 19480), (3896, 13235), (4870, 10588), (5294, 9740)]