1320260

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{263}}^1$

素因数の和:523

約数の個数: 24

約数和(自身を含む): 2794176

約数和(自身を除く): 1473916

約数列:

[1, 2, 4, 5, 10, 20, 251, 263, 502, 526, 1004, 1052, 1255, 1315, 2510, 2630, 5020, 5260, 66013, 132026, 264052, 330065, 660130, 1320260]

約数ペア:

[(1, 1320260), (2, 660130), (4, 330065), (5, 264052), (10, 132026), (20, 66013), (251, 5260), (263, 5020), (502, 2630), (526, 2510), (1004, 1315), (1052, 1255)]