About the Number

20497680

20497679 ← → 20497681

2進数表記:1001110001100010100010000

漢数字表記:二千四十九万七千六百八十

素因数分解:

2 4 × 3 2 × 5 1 × 7 3 × 83 1

素因数の和:123
約数の個数: 240
約数和(自身を含む): 81244800
約数和(自身を除く): 60747120

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 83, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 166, 168, 180, 196, 210, 240, 245, 249, 252, 280, 294, 315, 332, 336, 343, 360, 392, 415, 420, 441, 490, 498, 504, 560, 581, 588, 630, 664, 686, 720, 735, 747, 784, 830, 840, 882, 980, 996, 1008, 1029, 1162, 1176, 1245, 1260, 1328, 1372, 1470, 1494, 1660, 1680, 1715, 1743, 1764, 1960, 1992, 2058, 2205, 2324, 2352, 2490, 2520, 2744, 2905, 2940, 2988, 3087, 3320, 3430, 3486, 3528, 3735, 3920, 3984, 4067, 4116, 4410, 4648, 4980, 5040, 5145, 5229, 5488, 5810, 5880, 5976, 6174, 6640, 6860, 6972, 7056, 7470, 8134, 8232, 8715, 8820, 9296, 9960, 10290, 10458, 11620, 11760, 11952, 12201, 12348, 13720, 13944, 14940, 15435, 16268, 16464, 17430, 17640, 19920, 20335, 20580, 20916, 23240, 24402, 24696, 26145, 27440, 27888, 28469, 29880, 30870, 32536, 34860, 35280, 36603, 40670, 41160, 41832, 46480, 48804, 49392, 52290, 56938, 59760, 61005, 61740, 65072, 69720, 73206, 81340, 82320, 83664, 85407, 97608, 104580, 113876, 122010, 123480, 139440, 142345, 146412, 162680, 170814, 183015, 195216, 209160, 227752, 244020, 246960, 256221, 284690, 292824, 325360, 341628, 366030, 418320, 427035, 455504, 488040, 512442, 569380, 585648, 683256, 732060, 854070, 976080, 1024884, 1138760, 1281105, 1366512, 1464120, 1708140, 2049768, 2277520, 2562210, 2928240, 3416280, 4099536, 5124420, 6832560, 10248840, 20497680]

約数ペア:
[(1, 20497680), (2, 10248840), (3, 6832560), (4, 5124420), (5, 4099536), (6, 3416280), (7, 2928240), (8, 2562210), (9, 2277520), (10, 2049768), (12, 1708140), (14, 1464120), (15, 1366512), (16, 1281105), (18, 1138760), (20, 1024884), (21, 976080), (24, 854070), (28, 732060), (30, 683256), (35, 585648), (36, 569380), (40, 512442), (42, 488040), (45, 455504), (48, 427035), (49, 418320), (56, 366030), (60, 341628), (63, 325360), (70, 292824), (72, 284690), (80, 256221), (83, 246960), (84, 244020), (90, 227752), (98, 209160), (105, 195216), (112, 183015), (120, 170814), (126, 162680), (140, 146412), (144, 142345), (147, 139440), (166, 123480), (168, 122010), (180, 113876), (196, 104580), (210, 97608), (240, 85407), (245, 83664), (249, 82320), (252, 81340), (280, 73206), (294, 69720), (315, 65072), (332, 61740), (336, 61005), (343, 59760), (360, 56938), (392, 52290), (415, 49392), (420, 48804), (441, 46480), (490, 41832), (498, 41160), (504, 40670), (560, 36603), (581, 35280), (588, 34860), (630, 32536), (664, 30870), (686, 29880), (720, 28469), (735, 27888), (747, 27440), (784, 26145), (830, 24696), (840, 24402), (882, 23240), (980, 20916), (996, 20580), (1008, 20335), (1029, 19920), (1162, 17640), (1176, 17430), (1245, 16464), (1260, 16268), (1328, 15435), (1372, 14940), (1470, 13944), (1494, 13720), (1660, 12348), (1680, 12201), (1715, 11952), (1743, 11760), (1764, 11620), (1960, 10458), (1992, 10290), (2058, 9960), (2205, 9296), (2324, 8820), (2352, 8715), (2490, 8232), (2520, 8134), (2744, 7470), (2905, 7056), (2940, 6972), (2988, 6860), (3087, 6640), (3320, 6174), (3430, 5976), (3486, 5880), (3528, 5810), (3735, 5488), (3920, 5229), (3984, 5145), (4067, 5040), (4116, 4980), (4410, 4648)]

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