20115520

素因数分解:

$2^6\times 5^1\times {\mathrm{62861}}^1$

素因数の和:62878

約数の個数: 28

約数和(自身を含む): 47900844

約数和(自身を除く): 27785324

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 62861, 125722, 251444, 314305, 502888, 628610, 1005776, 1257220, 2011552, 2514440, 4023104, 5028880, 10057760, 20115520]

約数ペア:

[(1, 20115520), (2, 10057760), (4, 5028880), (5, 4023104), (8, 2514440), (10, 2011552), (16, 1257220), (20, 1005776), (32, 628610), (40, 502888), (64, 314305), (80, 251444), (160, 125722), (320, 62861)]