168994090

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{189881}}^1$

素因数の和:189977

約数の個数: 16

約数和(自身を含む): 307608840

約数和(自身を除く): 138614750

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 189881, 379762, 949405, 1898810, 16899409, 33798818, 84497045, 168994090]

約数ペア:

[(1, 168994090), (2, 84497045), (5, 33798818), (10, 16899409), (89, 1898810), (178, 949405), (445, 379762), (890, 189881)]