28718515

素因数分解:

$5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1949}}^1$

素因数の和:2382

約数の個数: 16

約数和(自身を含む): 39499200

約数和(自身を除く): 10780685

約数列:

[1, 5, 7, 35, 421, 1949, 2105, 2947, 9745, 13643, 14735, 68215, 820529, 4102645, 5743703, 28718515]

約数ペア:

[(1, 28718515), (5, 5743703), (7, 4102645), (35, 820529), (421, 68215), (1949, 14735), (2105, 13643), (2947, 9745)]