668340395

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{23831}}^1$

素因数の和:23986

約数の個数: 16

約数和(自身を含む): 823633920

約数和(自身を除く): 155293525

約数列:

[1, 5, 71, 79, 355, 395, 5609, 23831, 28045, 119155, 1692001, 1882649, 8460005, 9413245, 133668079, 668340395]

約数ペア:

[(1, 668340395), (5, 133668079), (71, 9413245), (79, 8460005), (355, 1882649), (395, 1692001), (5609, 119155), (23831, 28045)]