668437744

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{16651}}^1$

素因数の和:16865

約数の個数: 40

約数和(自身を含む): 1402031792

約数和(自身を除く): 733594048

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 193, 208, 386, 772, 1544, 2509, 3088, 5018, 10036, 16651, 20072, 33302, 40144, 66604, 133208, 216463, 266416, 432926, 865852, 1731704, 3213643, 3463408, 6427286, 12854572, 25709144, 41777359, 51418288, 83554718, 167109436, 334218872, 668437744]

約数ペア:

[(1, 668437744), (2, 334218872), (4, 167109436), (8, 83554718), (13, 51418288), (16, 41777359), (26, 25709144), (52, 12854572), (104, 6427286), (193, 3463408), (208, 3213643), (386, 1731704), (772, 865852), (1544, 432926), (2509, 266416), (3088, 216463), (5018, 133208), (10036, 66604), (16651, 40144), (20072, 33302)]