129600280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{499}}^1$

素因数の和:704

約数の個数: 64

約数和(自身を含む): 300960000

約数和(自身を除く): 171359720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 151, 172, 215, 302, 344, 430, 499, 604, 755, 860, 998, 1208, 1510, 1720, 1996, 2495, 3020, 3992, 4990, 6040, 6493, 9980, 12986, 19960, 21457, 25972, 32465, 42914, 51944, 64930, 75349, 85828, 107285, 129860, 150698, 171656, 214570, 259720, 301396, 376745, 429140, 602792, 753490, 858280, 1506980, 3013960, 3240007, 6480014, 12960028, 16200035, 25920056, 32400070, 64800140, 129600280]

約数ペア:

[(1, 129600280), (2, 64800140), (4, 32400070), (5, 25920056), (8, 16200035), (10, 12960028), (20, 6480014), (40, 3240007), (43, 3013960), (86, 1506980), (151, 858280), (172, 753490), (215, 602792), (302, 429140), (344, 376745), (430, 301396), (499, 259720), (604, 214570), (755, 171656), (860, 150698), (998, 129860), (1208, 107285), (1510, 85828), (1720, 75349), (1996, 64930), (2495, 51944), (3020, 42914), (3992, 32465), (4990, 25972), (6040, 21457), (6493, 19960), (9980, 12986)]