160999040

素因数分解:

$2^7\times 5^1\times {\mathrm{251561}}^1$

素因数の和:251580

約数の個数: 32

約数和(自身を含む): 384889860

約数和(自身を除く): 223890820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 251561, 503122, 1006244, 1257805, 2012488, 2515610, 4024976, 5031220, 8049952, 10062440, 16099904, 20124880, 32199808, 40249760, 80499520, 160999040]

約数ペア:

[(1, 160999040), (2, 80499520), (4, 40249760), (5, 32199808), (8, 20124880), (10, 16099904), (16, 10062440), (20, 8049952), (32, 5031220), (40, 4024976), (64, 2515610), (80, 2012488), (128, 1257805), (160, 1006244), (320, 503122), (640, 251561)]