30251320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{349}}^1$

素因数の和:568

約数の個数: 64

約数和(自身を含む): 74844000

約数和(自身を除く): 44592680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 197, 220, 349, 394, 440, 698, 788, 985, 1396, 1576, 1745, 1970, 2167, 2792, 3490, 3839, 3940, 4334, 6980, 7678, 7880, 8668, 10835, 13960, 15356, 17336, 19195, 21670, 30712, 38390, 43340, 68753, 76780, 86680, 137506, 153560, 275012, 343765, 550024, 687530, 756283, 1375060, 1512566, 2750120, 3025132, 3781415, 6050264, 7562830, 15125660, 30251320]

約数ペア:

[(1, 30251320), (2, 15125660), (4, 7562830), (5, 6050264), (8, 3781415), (10, 3025132), (11, 2750120), (20, 1512566), (22, 1375060), (40, 756283), (44, 687530), (55, 550024), (88, 343765), (110, 275012), (197, 153560), (220, 137506), (349, 86680), (394, 76780), (440, 68753), (698, 43340), (788, 38390), (985, 30712), (1396, 21670), (1576, 19195), (1745, 17336), (1970, 15356), (2167, 13960), (2792, 10835), (3490, 8668), (3839, 7880), (3940, 7678), (4334, 6980)]