9091010

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9001}}^1$

素因数の和:9109

約数の個数: 16

約数和(自身を含む): 16527672

約数和(自身を除く): 7436662

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 9001, 18002, 45005, 90010, 909101, 1818202, 4545505, 9091010]

約数ペア:

[(1, 9091010), (2, 4545505), (5, 1818202), (10, 909101), (101, 90010), (202, 45005), (505, 18002), (1010, 9001)]