127520195

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 171417600

約数和(自身を除く): 43897405

約数列:

[1, 5, 11, 55, 61, 191, 199, 305, 671, 955, 995, 2101, 2189, 3355, 10505, 10945, 11651, 12139, 38009, 58255, 60695, 128161, 133529, 190045, 418099, 640805, 667645, 2090495, 2318549, 11592745, 25504039, 127520195]

約数ペア:

[(1, 127520195), (5, 25504039), (11, 11592745), (55, 2318549), (61, 2090495), (191, 667645), (199, 640805), (305, 418099), (671, 190045), (955, 133529), (995, 128161), (2101, 60695), (2189, 58255), (3355, 38009), (10505, 12139), (10945, 11651)]