85561480

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{19991}}^1$

素因数の和:20109

約数の個数: 32

約数和(自身を含む): 194322240

約数和(自身を除く): 108760760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 19991, 39982, 79964, 99955, 159928, 199910, 399820, 799640, 2139037, 4278074, 8556148, 10695185, 17112296, 21390370, 42780740, 85561480]

約数ペア:

[(1, 85561480), (2, 42780740), (4, 21390370), (5, 17112296), (8, 10695185), (10, 8556148), (20, 4278074), (40, 2139037), (107, 799640), (214, 399820), (428, 199910), (535, 159928), (856, 99955), (1070, 79964), (2140, 39982), (4280, 19991)]