80720768

素因数分解:

$2^7\times {\mathrm{199}}^1\times {\mathrm{3169}}^1$

素因数の和:3382

約数の個数: 32

約数和(自身を含む): 161670000

約数和(自身を除く): 80949232

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 199, 398, 796, 1592, 3169, 3184, 6338, 6368, 12676, 12736, 25352, 25472, 50704, 101408, 202816, 405632, 630631, 1261262, 2522524, 5045048, 10090096, 20180192, 40360384, 80720768]

約数ペア:

[(1, 80720768), (2, 40360384), (4, 20180192), (8, 10090096), (16, 5045048), (32, 2522524), (64, 1261262), (128, 630631), (199, 405632), (398, 202816), (796, 101408), (1592, 50704), (3169, 25472), (3184, 25352), (6338, 12736), (6368, 12676)]