16985340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{479}}^1$

素因数の和:691

約数の個数: 72

約数和(自身を含む): 51891840

約数和(自身を除く): 34906500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 479, 591, 788, 958, 985, 1182, 1437, 1773, 1916, 1970, 2364, 2395, 2874, 2955, 3546, 3940, 4311, 4790, 5748, 5910, 7092, 7185, 8622, 8865, 9580, 11820, 14370, 17244, 17730, 21555, 28740, 35460, 43110, 86220, 94363, 188726, 283089, 377452, 471815, 566178, 849267, 943630, 1132356, 1415445, 1698534, 1887260, 2830890, 3397068, 4246335, 5661780, 8492670, 16985340]

約数ペア:

[(1, 16985340), (2, 8492670), (3, 5661780), (4, 4246335), (5, 3397068), (6, 2830890), (9, 1887260), (10, 1698534), (12, 1415445), (15, 1132356), (18, 943630), (20, 849267), (30, 566178), (36, 471815), (45, 377452), (60, 283089), (90, 188726), (180, 94363), (197, 86220), (394, 43110), (479, 35460), (591, 28740), (788, 21555), (958, 17730), (985, 17244), (1182, 14370), (1437, 11820), (1773, 9580), (1916, 8865), (1970, 8622), (2364, 7185), (2395, 7092), (2874, 5910), (2955, 5748), (3546, 4790), (3940, 4311)]