19520

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1$

素因数の和:78

約数の個数: 28

約数和(自身を含む): 47244

約数和(自身を除く): 27724

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 976, 1220, 1952, 2440, 3904, 4880, 9760, 19520]

約数ペア:

[(1, 19520), (2, 9760), (4, 4880), (5, 3904), (8, 2440), (10, 1952), (16, 1220), (20, 976), (32, 610), (40, 488), (61, 320), (64, 305), (80, 244), (122, 160)]