About the Number

388496640

388496639 ← → 388496641

2進数表記:10111001001111111110100000000

漢数字表記:三億八千八百四十九万六千六百四十

素因数分解:

2 8 × 3 1 × 5 1 × 7 1 × 97 1 × 149 1

素因数の和:277
約数の個数: 288
約数和(自身を含む): 1442246400
約数和(自身を除く): 1053749760

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 97, 105, 112, 120, 128, 140, 149, 160, 168, 192, 194, 210, 224, 240, 256, 280, 291, 298, 320, 336, 384, 388, 420, 447, 448, 480, 485, 560, 582, 596, 640, 672, 679, 745, 768, 776, 840, 894, 896, 960, 970, 1043, 1120, 1164, 1192, 1280, 1344, 1358, 1455, 1490, 1552, 1680, 1788, 1792, 1920, 1940, 2037, 2086, 2235, 2240, 2328, 2384, 2688, 2716, 2910, 2980, 3104, 3129, 3360, 3395, 3576, 3840, 3880, 4074, 4172, 4470, 4480, 4656, 4768, 5215, 5376, 5432, 5820, 5960, 6208, 6258, 6720, 6790, 7152, 7760, 8148, 8344, 8940, 8960, 9312, 9536, 10185, 10430, 10864, 11640, 11920, 12416, 12516, 13440, 13580, 14304, 14453, 15520, 15645, 16296, 16688, 17880, 18624, 19072, 20370, 20860, 21728, 23280, 23840, 24832, 25032, 26880, 27160, 28608, 28906, 31040, 31290, 32592, 33376, 35760, 37248, 38144, 40740, 41720, 43359, 43456, 46560, 47680, 50064, 54320, 57216, 57812, 62080, 62580, 65184, 66752, 71520, 72265, 74496, 81480, 83440, 86718, 86912, 93120, 95360, 100128, 101171, 108640, 114432, 115624, 124160, 125160, 130368, 133504, 143040, 144530, 162960, 166880, 173436, 173824, 186240, 190720, 200256, 202342, 216795, 217280, 231248, 250320, 260736, 267008, 286080, 289060, 303513, 325920, 333760, 346872, 372480, 400512, 404684, 433590, 434560, 462496, 500640, 505855, 521472, 572160, 578120, 607026, 651840, 667520, 693744, 801024, 809368, 867180, 869120, 924992, 1001280, 1011710, 1156240, 1214052, 1303680, 1335040, 1387488, 1517565, 1618736, 1734360, 1849984, 2002560, 2023420, 2312480, 2428104, 2607360, 2774976, 3035130, 3237472, 3468720, 3699968, 4005120, 4046840, 4624960, 4856208, 5549952, 6070260, 6474944, 6937440, 8093680, 9249920, 9712416, 11099904, 12140520, 12949888, 13874880, 16187360, 18499840, 19424832, 24281040, 25899776, 27749760, 32374720, 38849664, 48562080, 55499520, 64749440, 77699328, 97124160, 129498880, 194248320, 388496640]

約数ペア:
[(1, 388496640), (2, 194248320), (3, 129498880), (4, 97124160), (5, 77699328), (6, 64749440), (7, 55499520), (8, 48562080), (10, 38849664), (12, 32374720), (14, 27749760), (15, 25899776), (16, 24281040), (20, 19424832), (21, 18499840), (24, 16187360), (28, 13874880), (30, 12949888), (32, 12140520), (35, 11099904), (40, 9712416), (42, 9249920), (48, 8093680), (56, 6937440), (60, 6474944), (64, 6070260), (70, 5549952), (80, 4856208), (84, 4624960), (96, 4046840), (97, 4005120), (105, 3699968), (112, 3468720), (120, 3237472), (128, 3035130), (140, 2774976), (149, 2607360), (160, 2428104), (168, 2312480), (192, 2023420), (194, 2002560), (210, 1849984), (224, 1734360), (240, 1618736), (256, 1517565), (280, 1387488), (291, 1335040), (298, 1303680), (320, 1214052), (336, 1156240), (384, 1011710), (388, 1001280), (420, 924992), (447, 869120), (448, 867180), (480, 809368), (485, 801024), (560, 693744), (582, 667520), (596, 651840), (640, 607026), (672, 578120), (679, 572160), (745, 521472), (768, 505855), (776, 500640), (840, 462496), (894, 434560), (896, 433590), (960, 404684), (970, 400512), (1043, 372480), (1120, 346872), (1164, 333760), (1192, 325920), (1280, 303513), (1344, 289060), (1358, 286080), (1455, 267008), (1490, 260736), (1552, 250320), (1680, 231248), (1788, 217280), (1792, 216795), (1920, 202342), (1940, 200256), (2037, 190720), (2086, 186240), (2235, 173824), (2240, 173436), (2328, 166880), (2384, 162960), (2688, 144530), (2716, 143040), (2910, 133504), (2980, 130368), (3104, 125160), (3129, 124160), (3360, 115624), (3395, 114432), (3576, 108640), (3840, 101171), (3880, 100128), (4074, 95360), (4172, 93120), (4470, 86912), (4480, 86718), (4656, 83440), (4768, 81480), (5215, 74496), (5376, 72265), (5432, 71520), (5820, 66752), (5960, 65184), (6208, 62580), (6258, 62080), (6720, 57812), (6790, 57216), (7152, 54320), (7760, 50064), (8148, 47680), (8344, 46560), (8940, 43456), (8960, 43359), (9312, 41720), (9536, 40740), (10185, 38144), (10430, 37248), (10864, 35760), (11640, 33376), (11920, 32592), (12416, 31290), (12516, 31040), (13440, 28906), (13580, 28608), (14304, 27160), (14453, 26880), (15520, 25032), (15645, 24832), (16296, 23840), (16688, 23280), (17880, 21728), (18624, 20860), (19072, 20370)]

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