129820784

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{188693}}^1$

素因数の和:188744

約数の個数: 20

約数和(自身を含む): 257378616

約数和(自身を除く): 127557832

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 188693, 377386, 754772, 1509544, 3019088, 8113799, 16227598, 32455196, 64910392, 129820784]

約数ペア:

[(1, 129820784), (2, 64910392), (4, 32455196), (8, 16227598), (16, 8113799), (43, 3019088), (86, 1509544), (172, 754772), (344, 377386), (688, 188693)]