209847215

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{11981}}^1$

素因数の和:12130

約数の個数: 16

約数和(自身を含む): 262262016

約数和(自身を除く): 52414801

約数列:

[1, 5, 31, 113, 155, 565, 3503, 11981, 17515, 59905, 371411, 1353853, 1857055, 6769265, 41969443, 209847215]

約数ペア:

[(1, 209847215), (5, 41969443), (31, 6769265), (113, 1857055), (155, 1353853), (565, 371411), (3503, 59905), (11981, 17515)]