21787876920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{499}}^1\times {\mathrm{1847}}^1$

素因数の和:2557

約数の個数: 128

約数和(自身を含む): 65862720000

約数和(自身を除く): 44074843080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 197, 394, 499, 591, 788, 985, 998, 1182, 1497, 1576, 1847, 1970, 1996, 2364, 2495, 2955, 2994, 3694, 3940, 3992, 4728, 4990, 5541, 5910, 5988, 7388, 7485, 7880, 9235, 9980, 11082, 11820, 11976, 14776, 14970, 18470, 19960, 22164, 23640, 27705, 29940, 36940, 44328, 55410, 59880, 73880, 98303, 110820, 196606, 221640, 294909, 363859, 393212, 491515, 589818, 727718, 786424, 921653, 983030, 1091577, 1179636, 1455436, 1474545, 1819295, 1843306, 1966060, 2183154, 2359272, 2764959, 2910872, 2949090, 3638590, 3686612, 3932120, 4366308, 4608265, 5457885, 5529918, 5898180, 7277180, 7373224, 8732616, 9216530, 10915770, 11059836, 11796360, 13824795, 14554360, 18433060, 21831540, 22119672, 27649590, 36866120, 43663080, 55299180, 110598360, 181565641, 363131282, 544696923, 726262564, 907828205, 1089393846, 1452525128, 1815656410, 2178787692, 2723484615, 3631312820, 4357575384, 5446969230, 7262625640, 10893938460, 21787876920]

約数ペア:

[(1, 21787876920), (2, 10893938460), (3, 7262625640), (4, 5446969230), (5, 4357575384), (6, 3631312820), (8, 2723484615), (10, 2178787692), (12, 1815656410), (15, 1452525128), (20, 1089393846), (24, 907828205), (30, 726262564), (40, 544696923), (60, 363131282), (120, 181565641), (197, 110598360), (394, 55299180), (499, 43663080), (591, 36866120), (788, 27649590), (985, 22119672), (998, 21831540), (1182, 18433060), (1497, 14554360), (1576, 13824795), (1847, 11796360), (1970, 11059836), (1996, 10915770), (2364, 9216530), (2495, 8732616), (2955, 7373224), (2994, 7277180), (3694, 5898180), (3940, 5529918), (3992, 5457885), (4728, 4608265), (4990, 4366308), (5541, 3932120), (5910, 3686612), (5988, 3638590), (7388, 2949090), (7485, 2910872), (7880, 2764959), (9235, 2359272), (9980, 2183154), (11082, 1966060), (11820, 1843306), (11976, 1819295), (14776, 1474545), (14970, 1455436), (18470, 1179636), (19960, 1091577), (22164, 983030), (23640, 921653), (27705, 786424), (29940, 727718), (36940, 589818), (44328, 491515), (55410, 393212), (59880, 363859), (73880, 294909), (98303, 221640), (110820, 196606)]