28071585

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20123}}^1$

素因数の和:20165

約数の個数: 24

約数和(自身を含む): 50229504

約数和(自身を除く): 22157919

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 20123, 60369, 100615, 181107, 301845, 623813, 905535, 1871439, 3119065, 5614317, 9357195, 28071585]

約数ペア:

[(1, 28071585), (3, 9357195), (5, 5614317), (9, 3119065), (15, 1871439), (31, 905535), (45, 623813), (93, 301845), (155, 181107), (279, 100615), (465, 60369), (1395, 20123)]