51508840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{29947}}^1$

素因数の和:30001

約数の個数: 32

約数和(自身を含む): 118594080

約数和(自身を除く): 67085240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 29947, 59894, 119788, 149735, 239576, 299470, 598940, 1197880, 1287721, 2575442, 5150884, 6438605, 10301768, 12877210, 25754420, 51508840]

約数ペア:

[(1, 51508840), (2, 25754420), (4, 12877210), (5, 10301768), (8, 6438605), (10, 5150884), (20, 2575442), (40, 1287721), (43, 1197880), (86, 598940), (172, 299470), (215, 239576), (344, 149735), (430, 119788), (860, 59894), (1720, 29947)]