55915280

素因数分解:

$2^4\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1087}}^1$

素因数の和:1743

約数の個数: 40

約数和(自身を含む): 130324992

約数和(自身を除く): 74409712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 643, 1087, 1286, 2174, 2572, 3215, 4348, 5144, 5435, 6430, 8696, 10288, 10870, 12860, 17392, 21740, 25720, 43480, 51440, 86960, 698941, 1397882, 2795764, 3494705, 5591528, 6989410, 11183056, 13978820, 27957640, 55915280]

約数ペア:

[(1, 55915280), (2, 27957640), (4, 13978820), (5, 11183056), (8, 6989410), (10, 5591528), (16, 3494705), (20, 2795764), (40, 1397882), (80, 698941), (643, 86960), (1087, 51440), (1286, 43480), (2174, 25720), (2572, 21740), (3215, 17392), (4348, 12860), (5144, 10870), (5435, 10288), (6430, 8696)]