20167675

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:204

約数の個数: 36

約数和(自身を含む): 28201320

約数和(自身を除く): 8033645

約数列:

[1, 5, 11, 25, 55, 59, 113, 121, 275, 295, 565, 605, 649, 1243, 1475, 2825, 3025, 3245, 6215, 6667, 7139, 13673, 16225, 31075, 33335, 35695, 68365, 73337, 166675, 178475, 341825, 366685, 806707, 1833425, 4033535, 20167675]

約数ペア:

[(1, 20167675), (5, 4033535), (11, 1833425), (25, 806707), (55, 366685), (59, 341825), (113, 178475), (121, 166675), (275, 73337), (295, 68365), (565, 35695), (605, 33335), (649, 31075), (1243, 16225), (1475, 13673), (2825, 7139), (3025, 6667), (3245, 6215)]