640148271409

素因数分解:

${\mathrm{31}}^1\times {\mathrm{379}}^1\times {\mathrm{809}}^1\times {\mathrm{67349}}^1$

素因数の和:68568

約数の個数: 16

約数和(自身を含む): 663370560000

約数和(自身を除く): 23222288591

約数列:

[1, 31, 379, 809, 11749, 25079, 67349, 306611, 2087819, 9504941, 25525271, 54485341, 791283401, 1689045571, 20649944239, 640148271409]

約数ペア:

[(1, 640148271409), (31, 20649944239), (379, 1689045571), (809, 791283401), (11749, 54485341), (25079, 25525271), (67349, 9504941), (306611, 2087819)]