20889590

素因数分解:

$2^1\times 5^1\times {\mathrm{503}}^1\times {\mathrm{4153}}^1$

素因数の和:4663

約数の個数: 16

約数和(自身を含む): 37685088

約数和(自身を除く): 16795498

約数列:

[1, 2, 5, 10, 503, 1006, 2515, 4153, 5030, 8306, 20765, 41530, 2088959, 4177918, 10444795, 20889590]

約数ペア:

[(1, 20889590), (2, 10444795), (5, 4177918), (10, 2088959), (503, 41530), (1006, 20765), (2515, 8306), (4153, 5030)]