168990530

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{189877}}^1$

素因数の和:189973

約数の個数: 16

約数和(自身を含む): 307602360

約数和(自身を除く): 138611830

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 189877, 379754, 949385, 1898770, 16899053, 33798106, 84495265, 168990530]

約数ペア:

[(1, 168990530), (2, 84495265), (5, 33798106), (10, 16899053), (89, 1898770), (178, 949385), (445, 379754), (890, 189877)]