5129720

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{499}}^1$

素因数の和:767

約数の個数: 32

約数和(自身を含む): 11610000

約数和(自身を除く): 6480280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 499, 514, 998, 1028, 1285, 1996, 2056, 2495, 2570, 3992, 4990, 5140, 9980, 10280, 19960, 128243, 256486, 512972, 641215, 1025944, 1282430, 2564860, 5129720]

約数ペア:

[(1, 5129720), (2, 2564860), (4, 1282430), (5, 1025944), (8, 641215), (10, 512972), (20, 256486), (40, 128243), (257, 19960), (499, 10280), (514, 9980), (998, 5140), (1028, 4990), (1285, 3992), (1996, 2570), (2056, 2495)]