243267560

素因数分解:

$2^3\times 5^1\times {\mathrm{811}}^1\times {\mathrm{7499}}^1$

素因数の和:8321

約数の個数: 32

約数和(自身を含む): 548100000

約数和(自身を除く): 304832440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 811, 1622, 3244, 4055, 6488, 7499, 8110, 14998, 16220, 29996, 32440, 37495, 59992, 74990, 149980, 299960, 6081689, 12163378, 24326756, 30408445, 48653512, 60816890, 121633780, 243267560]

約数ペア:

[(1, 243267560), (2, 121633780), (4, 60816890), (5, 48653512), (8, 30408445), (10, 24326756), (20, 12163378), (40, 6081689), (811, 299960), (1622, 149980), (3244, 74990), (4055, 59992), (6488, 37495), (7499, 32440), (8110, 29996), (14998, 16220)]