1120520

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 2554200

約数和(自身を除く): 1433680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 257, 436, 514, 545, 872, 1028, 1090, 1285, 2056, 2180, 2570, 4360, 5140, 10280, 28013, 56026, 112052, 140065, 224104, 280130, 560260, 1120520]

約数ペア:

[(1, 1120520), (2, 560260), (4, 280130), (5, 224104), (8, 140065), (10, 112052), (20, 56026), (40, 28013), (109, 10280), (218, 5140), (257, 4360), (436, 2570), (514, 2180), (545, 2056), (872, 1285), (1028, 1090)]