66720404

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{234931}}^1$

素因数の和:235006

約数の個数: 12

約数和(自身を含む): 118405728

約数和(自身を除く): 51685324

約数列:

[1, 2, 4, 71, 142, 284, 234931, 469862, 939724, 16680101, 33360202, 66720404]

約数ペア:

[(1, 66720404), (2, 33360202), (4, 16680101), (71, 939724), (142, 469862), (284, 234931)]