66180080

素因数分解:

$2^4\times 5^1\times {\mathrm{827251}}^1$

素因数の和:827264

約数の個数: 20

約数和(自身を含む): 153868872

約数和(自身を除く): 87688792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 827251, 1654502, 3309004, 4136255, 6618008, 8272510, 13236016, 16545020, 33090040, 66180080]

約数ペア:

[(1, 66180080), (2, 33090040), (4, 16545020), (5, 13236016), (8, 8272510), (10, 6618008), (16, 4136255), (20, 3309004), (40, 1654502), (80, 827251)]