268564816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1291177}}^1$

素因数の和:1291198

約数の個数: 20

約数和(自身を含む): 560371252

約数和(自身を除く): 291806436

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1291177, 2582354, 5164708, 10329416, 16785301, 20658832, 33570602, 67141204, 134282408, 268564816]

約数ペア:

[(1, 268564816), (2, 134282408), (4, 67141204), (8, 33570602), (13, 20658832), (16, 16785301), (26, 10329416), (52, 5164708), (104, 2582354), (208, 1291177)]