121359880

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{15401}}^1$

素因数の和:15609

約数の個数: 32

約数和(自身を含む): 274463640

約数和(自身を除く): 153103760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 15401, 30802, 61604, 77005, 123208, 154010, 308020, 616040, 3033997, 6067994, 12135988, 15169985, 24271976, 30339970, 60679940, 121359880]

約数ペア:

[(1, 121359880), (2, 60679940), (4, 30339970), (5, 24271976), (8, 15169985), (10, 12135988), (20, 6067994), (40, 3033997), (197, 616040), (394, 308020), (788, 154010), (985, 123208), (1576, 77005), (1970, 61604), (3940, 30802), (7880, 15401)]