20090516

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{223}}^2$

素因数の和:551

約数の個数: 18

約数和(自身を含む): 35666442

約数和(自身を除く): 15575926

約数列:

[1, 2, 4, 101, 202, 223, 404, 446, 892, 22523, 45046, 49729, 90092, 99458, 198916, 5022629, 10045258, 20090516]

約数ペア:

[(1, 20090516), (2, 10045258), (4, 5022629), (101, 198916), (202, 99458), (223, 90092), (404, 49729), (446, 45046), (892, 22523)]