About the Number

2121005280

2121005279 ← → 2121005281

2進数表記:1111110011010111111100011100000

漢数字表記:二十一億二千百万五千二百八十

素因数分解:

2 5 × 3 1 × 5 1 × 89 1 × 131 1 × 379 1

素因数の和:617
約数の個数: 192
約数和(自身を含む): 6825772800
約数和(自身を除く): 4704767520

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 89, 96, 120, 131, 160, 178, 240, 262, 267, 356, 379, 393, 445, 480, 524, 534, 655, 712, 758, 786, 890, 1048, 1068, 1137, 1310, 1335, 1424, 1516, 1572, 1780, 1895, 1965, 2096, 2136, 2274, 2620, 2670, 2848, 3032, 3144, 3560, 3790, 3930, 4192, 4272, 4548, 5240, 5340, 5685, 6064, 6288, 7120, 7580, 7860, 8544, 9096, 10480, 10680, 11370, 11659, 12128, 12576, 14240, 15160, 15720, 18192, 20960, 21360, 22740, 23318, 30320, 31440, 33731, 34977, 36384, 42720, 45480, 46636, 49649, 58295, 60640, 62880, 67462, 69954, 90960, 93272, 99298, 101193, 116590, 134924, 139908, 148947, 168655, 174885, 181920, 186544, 198596, 202386, 233180, 248245, 269848, 279816, 297894, 337310, 349770, 373088, 397192, 404772, 466360, 496490, 505965, 539696, 559632, 595788, 674620, 699540, 744735, 794384, 809544, 932720, 992980, 1011930, 1079392, 1119264, 1191576, 1349240, 1399080, 1489470, 1588768, 1619088, 1865440, 1985960, 2023860, 2383152, 2698480, 2798160, 2978940, 3238176, 3971920, 4047720, 4418761, 4766304, 5396960, 5596320, 5957880, 7943840, 8095440, 8837522, 11915760, 13256283, 16190880, 17675044, 22093805, 23831520, 26512566, 35350088, 44187610, 53025132, 66281415, 70700176, 88375220, 106050264, 132562830, 141400352, 176750440, 212100528, 265125660, 353500880, 424201056, 530251320, 707001760, 1060502640, 2121005280]

約数ペア:
[(1, 2121005280), (2, 1060502640), (3, 707001760), (4, 530251320), (5, 424201056), (6, 353500880), (8, 265125660), (10, 212100528), (12, 176750440), (15, 141400352), (16, 132562830), (20, 106050264), (24, 88375220), (30, 70700176), (32, 66281415), (40, 53025132), (48, 44187610), (60, 35350088), (80, 26512566), (89, 23831520), (96, 22093805), (120, 17675044), (131, 16190880), (160, 13256283), (178, 11915760), (240, 8837522), (262, 8095440), (267, 7943840), (356, 5957880), (379, 5596320), (393, 5396960), (445, 4766304), (480, 4418761), (524, 4047720), (534, 3971920), (655, 3238176), (712, 2978940), (758, 2798160), (786, 2698480), (890, 2383152), (1048, 2023860), (1068, 1985960), (1137, 1865440), (1310, 1619088), (1335, 1588768), (1424, 1489470), (1516, 1399080), (1572, 1349240), (1780, 1191576), (1895, 1119264), (1965, 1079392), (2096, 1011930), (2136, 992980), (2274, 932720), (2620, 809544), (2670, 794384), (2848, 744735), (3032, 699540), (3144, 674620), (3560, 595788), (3790, 559632), (3930, 539696), (4192, 505965), (4272, 496490), (4548, 466360), (5240, 404772), (5340, 397192), (5685, 373088), (6064, 349770), (6288, 337310), (7120, 297894), (7580, 279816), (7860, 269848), (8544, 248245), (9096, 233180), (10480, 202386), (10680, 198596), (11370, 186544), (11659, 181920), (12128, 174885), (12576, 168655), (14240, 148947), (15160, 139908), (15720, 134924), (18192, 116590), (20960, 101193), (21360, 99298), (22740, 93272), (23318, 90960), (30320, 69954), (31440, 67462), (33731, 62880), (34977, 60640), (36384, 58295), (42720, 49649), (45480, 46636)]

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