129758768

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{197803}}^1$

素因数の和:197852

約数の個数: 20

約数和(自身を含む): 257540808

約数和(自身を除く): 127782040

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 197803, 395606, 791212, 1582424, 3164848, 8109923, 16219846, 32439692, 64879384, 129758768]

約数ペア:

[(1, 129758768), (2, 64879384), (4, 32439692), (8, 16219846), (16, 8109923), (41, 3164848), (82, 1582424), (164, 791212), (328, 395606), (656, 197803)]