1298996816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{6245177}}^1$

素因数の和:6245198

約数の個数: 20

約数和(自身を含む): 2710407252

約数和(自身を除く): 1411410436

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 6245177, 12490354, 24980708, 49961416, 81187301, 99922832, 162374602, 324749204, 649498408, 1298996816]

約数ペア:

[(1, 1298996816), (2, 649498408), (4, 324749204), (8, 162374602), (13, 99922832), (16, 81187301), (26, 49961416), (52, 24980708), (104, 12490354), (208, 6245177)]