28509640

素因数分解:

$2^3\times 5^1\times {\mathrm{547}}^1\times {\mathrm{1303}}^1$

素因数の和:1861

約数の個数: 32

約数和(自身を含む): 64313280

約数和(自身を除く): 35803640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547, 1094, 1303, 2188, 2606, 2735, 4376, 5212, 5470, 6515, 10424, 10940, 13030, 21880, 26060, 52120, 712741, 1425482, 2850964, 3563705, 5701928, 7127410, 14254820, 28509640]

約数ペア:

[(1, 28509640), (2, 14254820), (4, 7127410), (5, 5701928), (8, 3563705), (10, 2850964), (20, 1425482), (40, 712741), (547, 52120), (1094, 26060), (1303, 21880), (2188, 13030), (2606, 10940), (2735, 10424), (4376, 6515), (5212, 5470)]