239720080

素因数分解:

$2^4\times 5^1\times {\mathrm{1499}}^1\times {\mathrm{1999}}^1$

素因数の和:3511

約数の個数: 40

約数和(自身を含む): 558000000

約数和(自身を除く): 318279920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1499, 1999, 2998, 3998, 5996, 7495, 7996, 9995, 11992, 14990, 15992, 19990, 23984, 29980, 31984, 39980, 59960, 79960, 119920, 159920, 2996501, 5993002, 11986004, 14982505, 23972008, 29965010, 47944016, 59930020, 119860040, 239720080]

約数ペア:

[(1, 239720080), (2, 119860040), (4, 59930020), (5, 47944016), (8, 29965010), (10, 23972008), (16, 14982505), (20, 11986004), (40, 5993002), (80, 2996501), (1499, 159920), (1999, 119920), (2998, 79960), (3998, 59960), (5996, 39980), (7495, 31984), (7996, 29980), (9995, 23984), (11992, 19990), (14990, 15992)]