81086512

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{389839}}^1$

素因数の和:389860

約数の個数: 20

約数和(自身を含む): 169190560

約数和(自身を除く): 88104048

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 389839, 779678, 1559356, 3118712, 5067907, 6237424, 10135814, 20271628, 40543256, 81086512]

約数ペア:

[(1, 81086512), (2, 40543256), (4, 20271628), (8, 10135814), (13, 6237424), (16, 5067907), (26, 3118712), (52, 1559356), (104, 779678), (208, 389839)]