28639990

素因数分解:

$2^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{9209}}^1$

素因数の和:9527

約数の個数: 16

約数和(自身を含む): 51723360

約数和(自身を除く): 23083370

約数列:

[1, 2, 5, 10, 311, 622, 1555, 3110, 9209, 18418, 46045, 92090, 2863999, 5727998, 14319995, 28639990]

約数ペア:

[(1, 28639990), (2, 14319995), (5, 5727998), (10, 2863999), (311, 92090), (622, 46045), (1555, 18418), (3110, 9209)]