263279185

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{173}}^1\times {\mathrm{1801}}^1$

素因数の和:2005

約数の個数: 24

約数和(自身を含む): 344275704

約数和(自身を除く): 80996519

約数列:

[1, 5, 13, 65, 169, 173, 845, 865, 1801, 2249, 9005, 11245, 23413, 29237, 117065, 146185, 304369, 311573, 1521845, 1557865, 4050449, 20252245, 52655837, 263279185]

約数ペア:

[(1, 263279185), (5, 52655837), (13, 20252245), (65, 4050449), (169, 1557865), (173, 1521845), (845, 311573), (865, 304369), (1801, 146185), (2249, 117065), (9005, 29237), (11245, 23413)]