20403749045

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{440543}}^1$

素因数の和:440764

約数の個数: 16

約数和(自身を含む): 25058142720

約数和(自身を除く): 4654393675

約数列:

[1, 5, 59, 157, 295, 785, 9263, 46315, 440543, 2202715, 25992037, 69165251, 129960185, 345826255, 4080749809, 20403749045]

約数ペア:

[(1, 20403749045), (5, 4080749809), (59, 345826255), (157, 129960185), (295, 69165251), (785, 25992037), (9263, 2202715), (46315, 440543)]