340288

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:434

約数の個数: 28

約数和(自身を含む): 728980

約数和(自身を除く): 388692

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 409, 416, 818, 832, 1636, 3272, 5317, 6544, 10634, 13088, 21268, 26176, 42536, 85072, 170144, 340288]

約数ペア:

[(1, 340288), (2, 170144), (4, 85072), (8, 42536), (13, 26176), (16, 21268), (26, 13088), (32, 10634), (52, 6544), (64, 5317), (104, 3272), (208, 1636), (409, 832), (416, 818)]