20027345

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:341

約数の個数: 24

約数和(自身を含む): 26365176

約数和(自身を除く): 6337831

約数列:

[1, 5, 13, 65, 137, 169, 173, 685, 845, 865, 1781, 2249, 8905, 11245, 23153, 23701, 29237, 115765, 118505, 146185, 308113, 1540565, 4005469, 20027345]

約数ペア:

[(1, 20027345), (5, 4005469), (13, 1540565), (65, 308113), (137, 146185), (169, 118505), (173, 115765), (685, 29237), (845, 23701), (865, 23153), (1781, 11245), (2249, 8905)]