865072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{4159}}^1$

素因数の和:4180

約数の個数: 20

約数和(自身を含む): 1805440

約数和(自身を除く): 940368

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 4159, 8318, 16636, 33272, 54067, 66544, 108134, 216268, 432536, 865072]

約数ペア:

[(1, 865072), (2, 432536), (4, 216268), (8, 108134), (13, 66544), (16, 54067), (26, 33272), (52, 16636), (104, 8318), (208, 4159)]