51510992

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{247649}}^1$

素因数の和:247670

約数の個数: 20

約数和(自身を含む): 107480100

約数和(自身を除く): 55969108

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 247649, 495298, 990596, 1981192, 3219437, 3962384, 6438874, 12877748, 25755496, 51510992]

約数ペア:

[(1, 51510992), (2, 25755496), (4, 12877748), (8, 6438874), (13, 3962384), (16, 3219437), (26, 1981192), (52, 990596), (104, 495298), (208, 247649)]