66774800

素因数分解:

$2^4\times 5^2\times {\mathrm{97}}^1\times {\mathrm{1721}}^1$

素因数の和:1836

約数の個数: 60

約数和(自身を含む): 162174516

約数和(自身を除く): 95399716

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 194, 200, 388, 400, 485, 776, 970, 1552, 1721, 1940, 2425, 3442, 3880, 4850, 6884, 7760, 8605, 9700, 13768, 17210, 19400, 27536, 34420, 38800, 43025, 68840, 86050, 137680, 166937, 172100, 333874, 344200, 667748, 688400, 834685, 1335496, 1669370, 2670992, 3338740, 4173425, 6677480, 8346850, 13354960, 16693700, 33387400, 66774800]

約数ペア:

[(1, 66774800), (2, 33387400), (4, 16693700), (5, 13354960), (8, 8346850), (10, 6677480), (16, 4173425), (20, 3338740), (25, 2670992), (40, 1669370), (50, 1335496), (80, 834685), (97, 688400), (100, 667748), (194, 344200), (200, 333874), (388, 172100), (400, 166937), (485, 137680), (776, 86050), (970, 68840), (1552, 43025), (1721, 38800), (1940, 34420), (2425, 27536), (3442, 19400), (3880, 17210), (4850, 13768), (6884, 9700), (7760, 8605)]