78321872

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{157907}}^1$

素因数の和:157946

約数の個数: 20

約数和(自身を含む): 156644736

約数和(自身を除く): 78322864

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 157907, 315814, 631628, 1263256, 2526512, 4895117, 9790234, 19580468, 39160936, 78321872]

約数ペア:

[(1, 78321872), (2, 39160936), (4, 19580468), (8, 9790234), (16, 4895117), (31, 2526512), (62, 1263256), (124, 631628), (248, 315814), (496, 157907)]