201218825

素因数分解:

$5^2\times {\mathrm{151}}^2\times {\mathrm{353}}^1$

素因数の和:665

約数の個数: 18

約数和(自身を含む): 251886222

約数和(自身を除く): 50667397

約数列:

[1, 5, 25, 151, 353, 755, 1765, 3775, 8825, 22801, 53303, 114005, 266515, 570025, 1332575, 8048753, 40243765, 201218825]

約数ペア:

[(1, 201218825), (5, 40243765), (25, 8048753), (151, 1332575), (353, 570025), (755, 266515), (1765, 114005), (3775, 53303), (8825, 22801)]