209128765

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{9521}}^1$

素因数の和:9740

約数の個数: 16

約数和(自身を含む): 263264256

約数和(自身を除く): 54135491

約数列:

[1, 5, 23, 115, 191, 955, 4393, 9521, 21965, 47605, 218983, 1094915, 1818511, 9092555, 41825753, 209128765]

約数ペア:

[(1, 209128765), (5, 41825753), (23, 9092555), (115, 1818511), (191, 1094915), (955, 218983), (4393, 47605), (9521, 21965)]