81426995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{6359}}^1$

素因数の和:6574

約数の個数: 16

約数和(自身を含む): 105779520

約数和(自身を除く): 24352525

約数列:

[1, 5, 13, 65, 197, 985, 2561, 6359, 12805, 31795, 82667, 413335, 1252723, 6263615, 16285399, 81426995]

約数ペア:

[(1, 81426995), (5, 16285399), (13, 6263615), (65, 1252723), (197, 413335), (985, 82667), (2561, 31795), (6359, 12805)]