261065488510

素因数分解:

$2^1\times 5^1\times {\mathrm{6491}}^1\times {\mathrm{4021961}}^1$

素因数の和:4028459

約数の個数: 16

約数和(自身を含む): 469990391472

約数和(自身を除く): 208924902962

約数列:

[1, 2, 5, 10, 6491, 12982, 32455, 64910, 4021961, 8043922, 20109805, 40219610, 26106548851, 52213097702, 130532744255, 261065488510]

約数ペア:

[(1, 261065488510), (2, 130532744255), (5, 52213097702), (10, 26106548851), (6491, 40219610), (12982, 20109805), (32455, 8043922), (64910, 4021961)]