15920485

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{19777}}^1$

素因数の和:19812

約数の個数: 16

約数和(自身を含む): 22784256

約数和(自身を除く): 6863771

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 19777, 98885, 138439, 454871, 692195, 2274355, 3184097, 15920485]

約数ペア:

[(1, 15920485), (5, 3184097), (7, 2274355), (23, 692195), (35, 454871), (115, 138439), (161, 98885), (805, 19777)]