261821290

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{259229}}^1$

素因数の和:259337

約数の個数: 16

約数和(自身を含む): 475946280

約数和(自身を除く): 214124990

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 259229, 518458, 1296145, 2592290, 26182129, 52364258, 130910645, 261821290]

約数ペア:

[(1, 261821290), (2, 130910645), (5, 52364258), (10, 26182129), (101, 2592290), (202, 1296145), (505, 518458), (1010, 259229)]