42120065

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{4349}}^1$

素因数の和:4516

約数の個数: 16

約数和(自身を含む): 54810000

約数和(自身を除く): 12689935

約数列:

[1, 5, 13, 65, 149, 745, 1937, 4349, 9685, 21745, 56537, 282685, 648001, 3240005, 8424013, 42120065]

約数ペア:

[(1, 42120065), (5, 8424013), (13, 3240005), (65, 648001), (149, 282685), (745, 56537), (1937, 21745), (4349, 9685)]