25495740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{719}}^1$

素因数の和:931

約数の個数: 72

約数和(自身を含む): 77837760

約数和(自身を除く): 52342020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 591, 719, 788, 985, 1182, 1438, 1773, 1970, 2157, 2364, 2876, 2955, 3546, 3595, 3940, 4314, 5910, 6471, 7092, 7190, 8628, 8865, 10785, 11820, 12942, 14380, 17730, 21570, 25884, 32355, 35460, 43140, 64710, 129420, 141643, 283286, 424929, 566572, 708215, 849858, 1274787, 1416430, 1699716, 2124645, 2549574, 2832860, 4249290, 5099148, 6373935, 8498580, 12747870, 25495740]

約数ペア:

[(1, 25495740), (2, 12747870), (3, 8498580), (4, 6373935), (5, 5099148), (6, 4249290), (9, 2832860), (10, 2549574), (12, 2124645), (15, 1699716), (18, 1416430), (20, 1274787), (30, 849858), (36, 708215), (45, 566572), (60, 424929), (90, 283286), (180, 141643), (197, 129420), (394, 64710), (591, 43140), (719, 35460), (788, 32355), (985, 25884), (1182, 21570), (1438, 17730), (1773, 14380), (1970, 12942), (2157, 11820), (2364, 10785), (2876, 8865), (2955, 8628), (3546, 7190), (3595, 7092), (3940, 6471), (4314, 5910)]