261640765

素因数分解:

$5^1\times {\mathrm{113}}^1\times {\mathrm{571}}^1\times {\mathrm{811}}^1$

素因数の和:1500

約数の個数: 16

約数和(自身を含む): 317693376

約数和(自身を除く): 56052611

約数列:

[1, 5, 113, 565, 571, 811, 2855, 4055, 64523, 91643, 322615, 458215, 463081, 2315405, 52328153, 261640765]

約数ペア:

[(1, 261640765), (5, 52328153), (113, 2315405), (565, 463081), (571, 458215), (811, 322615), (2855, 91643), (4055, 64523)]