28264760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16433}}^1$

素因数の和:16487

約数の個数: 32

約数和(自身を含む): 65078640

約数和(自身を除く): 36813880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16433, 32866, 65732, 82165, 131464, 164330, 328660, 657320, 706619, 1413238, 2826476, 3533095, 5652952, 7066190, 14132380, 28264760]

約数ペア:

[(1, 28264760), (2, 14132380), (4, 7066190), (5, 5652952), (8, 3533095), (10, 2826476), (20, 1413238), (40, 706619), (43, 657320), (86, 328660), (172, 164330), (215, 131464), (344, 82165), (430, 65732), (860, 32866), (1720, 16433)]