64643580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1823}}^1$

素因数の和:2035

約数の個数: 72

約数和(自身を含む): 197188992

約数和(自身を除く): 132545412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 591, 788, 985, 1182, 1773, 1823, 1970, 2364, 2955, 3546, 3646, 3940, 5469, 5910, 7092, 7292, 8865, 9115, 10938, 11820, 16407, 17730, 18230, 21876, 27345, 32814, 35460, 36460, 54690, 65628, 82035, 109380, 164070, 328140, 359131, 718262, 1077393, 1436524, 1795655, 2154786, 3232179, 3591310, 4309572, 5386965, 6464358, 7182620, 10773930, 12928716, 16160895, 21547860, 32321790, 64643580]

約数ペア:

[(1, 64643580), (2, 32321790), (3, 21547860), (4, 16160895), (5, 12928716), (6, 10773930), (9, 7182620), (10, 6464358), (12, 5386965), (15, 4309572), (18, 3591310), (20, 3232179), (30, 2154786), (36, 1795655), (45, 1436524), (60, 1077393), (90, 718262), (180, 359131), (197, 328140), (394, 164070), (591, 109380), (788, 82035), (985, 65628), (1182, 54690), (1773, 36460), (1823, 35460), (1970, 32814), (2364, 27345), (2955, 21876), (3546, 18230), (3646, 17730), (3940, 16407), (5469, 11820), (5910, 10938), (7092, 9115), (7292, 8865)]