About the Number

1281897120

1281897119 ← → 1281897121

2進数表記:1001100011010000011001010100000

漢数字表記:十二億八千百八十九万七千百二十

素因数分解:

2 5 × 3 1 × 5 1 × 7 1 × 31 2 × 397 1

素因数の和:484
約数の個数: 288
約数和(自身を含む): 4780508544
約数和(自身を除く): 3498611424

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 32, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 96, 105, 112, 120, 124, 140, 155, 160, 168, 186, 210, 217, 224, 240, 248, 280, 310, 336, 372, 397, 420, 434, 465, 480, 496, 560, 620, 651, 672, 744, 794, 840, 868, 930, 961, 992, 1085, 1120, 1191, 1240, 1302, 1488, 1588, 1680, 1736, 1860, 1922, 1985, 2170, 2382, 2480, 2604, 2779, 2883, 2976, 3176, 3255, 3360, 3472, 3720, 3844, 3970, 4340, 4764, 4805, 4960, 5208, 5558, 5766, 5955, 6352, 6510, 6727, 6944, 7440, 7688, 7940, 8337, 8680, 9528, 9610, 10416, 11116, 11532, 11910, 12307, 12704, 13020, 13454, 13895, 14415, 14880, 15376, 15880, 16674, 17360, 19056, 19220, 20181, 20832, 22232, 23064, 23820, 24614, 26040, 26908, 27790, 28830, 30752, 31760, 33348, 33635, 34720, 36921, 38112, 38440, 40362, 41685, 44464, 46128, 47640, 49228, 52080, 53816, 55580, 57660, 61535, 63520, 66696, 67270, 73842, 76880, 80724, 83370, 86149, 88928, 92256, 95280, 98456, 100905, 104160, 107632, 111160, 115320, 123070, 133392, 134540, 147684, 153760, 161448, 166740, 172298, 184605, 190560, 196912, 201810, 215264, 222320, 230640, 246140, 258447, 266784, 269080, 295368, 322896, 333480, 344596, 369210, 381517, 393824, 403620, 430745, 444640, 461280, 492280, 516894, 538160, 590736, 645792, 666960, 689192, 738420, 763034, 807240, 861490, 984560, 1033788, 1076320, 1144551, 1181472, 1292235, 1333920, 1378384, 1476840, 1526068, 1614480, 1722980, 1907585, 1969120, 2067576, 2289102, 2584470, 2670619, 2756768, 2953680, 3052136, 3228960, 3445960, 3815170, 4135152, 4578204, 5168940, 5341238, 5722755, 5907360, 6104272, 6891920, 7630340, 8011857, 8270304, 9156408, 10337880, 10682476, 11445510, 12208544, 13353095, 13783840, 15260680, 16023714, 18312816, 20675760, 21364952, 22891020, 26706190, 30521360, 32047428, 36625632, 40059285, 41351520, 42729904, 45782040, 53412380, 61042720, 64094856, 80118570, 85459808, 91564080, 106824760, 128189712, 160237140, 183128160, 213649520, 256379424, 320474280, 427299040, 640948560, 1281897120]

約数ペア:
[(1, 1281897120), (2, 640948560), (3, 427299040), (4, 320474280), (5, 256379424), (6, 213649520), (7, 183128160), (8, 160237140), (10, 128189712), (12, 106824760), (14, 91564080), (15, 85459808), (16, 80118570), (20, 64094856), (21, 61042720), (24, 53412380), (28, 45782040), (30, 42729904), (31, 41351520), (32, 40059285), (35, 36625632), (40, 32047428), (42, 30521360), (48, 26706190), (56, 22891020), (60, 21364952), (62, 20675760), (70, 18312816), (80, 16023714), (84, 15260680), (93, 13783840), (96, 13353095), (105, 12208544), (112, 11445510), (120, 10682476), (124, 10337880), (140, 9156408), (155, 8270304), (160, 8011857), (168, 7630340), (186, 6891920), (210, 6104272), (217, 5907360), (224, 5722755), (240, 5341238), (248, 5168940), (280, 4578204), (310, 4135152), (336, 3815170), (372, 3445960), (397, 3228960), (420, 3052136), (434, 2953680), (465, 2756768), (480, 2670619), (496, 2584470), (560, 2289102), (620, 2067576), (651, 1969120), (672, 1907585), (744, 1722980), (794, 1614480), (840, 1526068), (868, 1476840), (930, 1378384), (961, 1333920), (992, 1292235), (1085, 1181472), (1120, 1144551), (1191, 1076320), (1240, 1033788), (1302, 984560), (1488, 861490), (1588, 807240), (1680, 763034), (1736, 738420), (1860, 689192), (1922, 666960), (1985, 645792), (2170, 590736), (2382, 538160), (2480, 516894), (2604, 492280), (2779, 461280), (2883, 444640), (2976, 430745), (3176, 403620), (3255, 393824), (3360, 381517), (3472, 369210), (3720, 344596), (3844, 333480), (3970, 322896), (4340, 295368), (4764, 269080), (4805, 266784), (4960, 258447), (5208, 246140), (5558, 230640), (5766, 222320), (5955, 215264), (6352, 201810), (6510, 196912), (6727, 190560), (6944, 184605), (7440, 172298), (7688, 166740), (7940, 161448), (8337, 153760), (8680, 147684), (9528, 134540), (9610, 133392), (10416, 123070), (11116, 115320), (11532, 111160), (11910, 107632), (12307, 104160), (12704, 100905), (13020, 98456), (13454, 95280), (13895, 92256), (14415, 88928), (14880, 86149), (15376, 83370), (15880, 80724), (16674, 76880), (17360, 73842), (19056, 67270), (19220, 66696), (20181, 63520), (20832, 61535), (22232, 57660), (23064, 55580), (23820, 53816), (24614, 52080), (26040, 49228), (26908, 47640), (27790, 46128), (28830, 44464), (30752, 41685), (31760, 40362), (33348, 38440), (33635, 38112), (34720, 36921)]

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