639464967488

素因数分解:

$2^6\times {\mathrm{139}}^1\times {\mathrm{71882303}}^1$

素因数の和:71882454

約数の個数: 28

約数和(自身を含む): 1278067365120

約数和(自身を除く): 638602397632

約数列:

[1, 2, 4, 8, 16, 32, 64, 139, 278, 556, 1112, 2224, 4448, 8896, 71882303, 143764606, 287529212, 575058424, 1150116848, 2300233696, 4600467392, 9991640117, 19983280234, 39966560468, 79933120936, 159866241872, 319732483744, 639464967488]

約数ペア:

[(1, 639464967488), (2, 319732483744), (4, 159866241872), (8, 79933120936), (16, 39966560468), (32, 19983280234), (64, 9991640117), (139, 4600467392), (278, 2300233696), (556, 1150116848), (1112, 575058424), (2224, 287529212), (4448, 143764606), (8896, 71882303)]