28181270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{216779}}^1$

素因数の和:216799

約数の個数: 16

約数和(自身を含む): 54628560

約数和(自身を除く): 26447290

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 216779, 433558, 1083895, 2167790, 2818127, 5636254, 14090635, 28181270]

約数ペア:

[(1, 28181270), (2, 14090635), (5, 5636254), (10, 2818127), (13, 2167790), (26, 1083895), (65, 433558), (130, 216779)]