28895225

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:377

約数の個数: 24

約数和(自身を含む): 36997632

約数和(自身を除く): 8102407

約数列:

[1, 5, 25, 71, 73, 223, 355, 365, 1115, 1775, 1825, 5183, 5575, 15833, 16279, 25915, 79165, 81395, 129575, 395825, 406975, 1155809, 5779045, 28895225]

約数ペア:

[(1, 28895225), (5, 5779045), (25, 1155809), (71, 406975), (73, 395825), (223, 129575), (355, 81395), (365, 79165), (1115, 25915), (1775, 16279), (1825, 15833), (5183, 5575)]