85396280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{379}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 198633600

約数和(自身を除く): 113237320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 131, 172, 215, 262, 344, 379, 430, 524, 655, 758, 860, 1048, 1310, 1516, 1720, 1895, 2620, 3032, 3790, 5240, 5633, 7580, 11266, 15160, 16297, 22532, 28165, 32594, 45064, 49649, 56330, 65188, 81485, 99298, 112660, 130376, 162970, 198596, 225320, 248245, 325940, 397192, 496490, 651880, 992980, 1985960, 2134907, 4269814, 8539628, 10674535, 17079256, 21349070, 42698140, 85396280]

約数ペア:

[(1, 85396280), (2, 42698140), (4, 21349070), (5, 17079256), (8, 10674535), (10, 8539628), (20, 4269814), (40, 2134907), (43, 1985960), (86, 992980), (131, 651880), (172, 496490), (215, 397192), (262, 325940), (344, 248245), (379, 225320), (430, 198596), (524, 162970), (655, 130376), (758, 112660), (860, 99298), (1048, 81485), (1310, 65188), (1516, 56330), (1720, 49649), (1895, 45064), (2620, 32594), (3032, 28165), (3790, 22532), (5240, 16297), (5633, 15160), (7580, 11266)]