720448768

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{216481}}^1$

素因数の和:216510

約数の個数: 36

約数和(自身を含む): 1548712228

約数和(自身を除く): 828263460

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 832, 1664, 3328, 216481, 432962, 865924, 1731848, 2814253, 3463696, 5628506, 6927392, 11257012, 13854784, 22514024, 27709568, 45028048, 55419136, 90056096, 180112192, 360224384, 720448768]

約数ペア:

[(1, 720448768), (2, 360224384), (4, 180112192), (8, 90056096), (13, 55419136), (16, 45028048), (26, 27709568), (32, 22514024), (52, 13854784), (64, 11257012), (104, 6927392), (128, 5628506), (208, 3463696), (256, 2814253), (416, 1731848), (832, 865924), (1664, 432962), (3328, 216481)]