About the Number

1231788240

1231788239 ← → 1231788241

2進数表記:1001001011010111001100011010000

漢数字表記:十二億三千百七十八万八千二百四十

素因数分解:

2 4 × 3 2 × 5 1 × 19 1 × 127 1 × 709 1

素因数の和:874
約数の個数: 240
約数和(自身を含む): 4394956800
約数和(自身を除く): 3163168560

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 127, 144, 152, 171, 180, 190, 228, 240, 254, 285, 304, 342, 360, 380, 381, 456, 508, 570, 635, 684, 709, 720, 760, 762, 855, 912, 1016, 1140, 1143, 1270, 1368, 1418, 1520, 1524, 1710, 1905, 2032, 2127, 2280, 2286, 2413, 2540, 2736, 2836, 3048, 3420, 3545, 3810, 4254, 4560, 4572, 4826, 5080, 5672, 5715, 6096, 6381, 6840, 7090, 7239, 7620, 8508, 9144, 9652, 10160, 10635, 11344, 11430, 12065, 12762, 13471, 13680, 14180, 14478, 15240, 17016, 18288, 19304, 21270, 21717, 22860, 24130, 25524, 26942, 28360, 28956, 30480, 31905, 34032, 36195, 38608, 40413, 42540, 43434, 45720, 48260, 51048, 53884, 56720, 57912, 63810, 67355, 72390, 80826, 85080, 86868, 90043, 91440, 96520, 102096, 107768, 108585, 115824, 121239, 127620, 134710, 144780, 161652, 170160, 173736, 180086, 193040, 202065, 215536, 217170, 242478, 255240, 269420, 270129, 289560, 323304, 347472, 360172, 404130, 434340, 450215, 484956, 510480, 538840, 540258, 579120, 606195, 646608, 720344, 808260, 810387, 868680, 900430, 969912, 1077680, 1080516, 1212390, 1350645, 1440688, 1616520, 1620774, 1710817, 1737360, 1800860, 1939824, 2161032, 2424780, 2701290, 3233040, 3241548, 3421634, 3601720, 4051935, 4322064, 4849560, 5132451, 5402580, 6483096, 6843268, 7203440, 8103870, 8554085, 9699120, 10264902, 10805160, 12966192, 13686536, 15397353, 16207740, 17108170, 20529804, 21610320, 25662255, 27373072, 30794706, 32415480, 34216340, 41059608, 51324510, 61589412, 64830960, 68432680, 76986765, 82119216, 102649020, 123178824, 136865360, 153973530, 205298040, 246357648, 307947060, 410596080, 615894120, 1231788240]

約数ペア:
[(1, 1231788240), (2, 615894120), (3, 410596080), (4, 307947060), (5, 246357648), (6, 205298040), (8, 153973530), (9, 136865360), (10, 123178824), (12, 102649020), (15, 82119216), (16, 76986765), (18, 68432680), (19, 64830960), (20, 61589412), (24, 51324510), (30, 41059608), (36, 34216340), (38, 32415480), (40, 30794706), (45, 27373072), (48, 25662255), (57, 21610320), (60, 20529804), (72, 17108170), (76, 16207740), (80, 15397353), (90, 13686536), (95, 12966192), (114, 10805160), (120, 10264902), (127, 9699120), (144, 8554085), (152, 8103870), (171, 7203440), (180, 6843268), (190, 6483096), (228, 5402580), (240, 5132451), (254, 4849560), (285, 4322064), (304, 4051935), (342, 3601720), (360, 3421634), (380, 3241548), (381, 3233040), (456, 2701290), (508, 2424780), (570, 2161032), (635, 1939824), (684, 1800860), (709, 1737360), (720, 1710817), (760, 1620774), (762, 1616520), (855, 1440688), (912, 1350645), (1016, 1212390), (1140, 1080516), (1143, 1077680), (1270, 969912), (1368, 900430), (1418, 868680), (1520, 810387), (1524, 808260), (1710, 720344), (1905, 646608), (2032, 606195), (2127, 579120), (2280, 540258), (2286, 538840), (2413, 510480), (2540, 484956), (2736, 450215), (2836, 434340), (3048, 404130), (3420, 360172), (3545, 347472), (3810, 323304), (4254, 289560), (4560, 270129), (4572, 269420), (4826, 255240), (5080, 242478), (5672, 217170), (5715, 215536), (6096, 202065), (6381, 193040), (6840, 180086), (7090, 173736), (7239, 170160), (7620, 161652), (8508, 144780), (9144, 134710), (9652, 127620), (10160, 121239), (10635, 115824), (11344, 108585), (11430, 107768), (12065, 102096), (12762, 96520), (13471, 91440), (13680, 90043), (14180, 86868), (14478, 85080), (15240, 80826), (17016, 72390), (18288, 67355), (19304, 63810), (21270, 57912), (21717, 56720), (22860, 53884), (24130, 51048), (25524, 48260), (26942, 45720), (28360, 43434), (28956, 42540), (30480, 40413), (31905, 38608), (34032, 36195)]

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