259811390

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{257239}}^1$

素因数の和:257347

約数の個数: 16

約数和(自身を含む): 472292640

約数和(自身を除く): 212481250

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 257239, 514478, 1286195, 2572390, 25981139, 51962278, 129905695, 259811390]

約数ペア:

[(1, 259811390), (2, 129905695), (5, 51962278), (10, 25981139), (101, 2572390), (202, 1286195), (505, 514478), (1010, 257239)]