681844208

素因数分解:

$2^4\times {\mathrm{173}}^1\times {\mathrm{313}}^1\times {\mathrm{787}}^1$

素因数の和:1281

約数の個数: 40

約数和(自身を含む): 1334648208

約数和(自身を除く): 652804000

約数列:

[1, 2, 4, 8, 16, 173, 313, 346, 626, 692, 787, 1252, 1384, 1574, 2504, 2768, 3148, 5008, 6296, 12592, 54149, 108298, 136151, 216596, 246331, 272302, 433192, 492662, 544604, 866384, 985324, 1089208, 1970648, 2178416, 3941296, 42615263, 85230526, 170461052, 340922104, 681844208]

約数ペア:

[(1, 681844208), (2, 340922104), (4, 170461052), (8, 85230526), (16, 42615263), (173, 3941296), (313, 2178416), (346, 1970648), (626, 1089208), (692, 985324), (787, 866384), (1252, 544604), (1384, 492662), (1574, 433192), (2504, 272302), (2768, 246331), (3148, 216596), (5008, 136151), (6296, 108298), (12592, 54149)]