About the Number

81187920

81187919 ← → 81187921

2進数表記:100110101101101010001010000

漢数字表記:八千百十八万七千九百二十

素因数分解:

2 4 × 3 4 × 5 1 × 11 1 × 17 1 × 67 1

素因数の和:120
約数の個数: 400
約数和(自身を含む): 330568128
約数和(自身を除く): 249380208

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 17, 18, 20, 22, 24, 27, 30, 33, 34, 36, 40, 44, 45, 48, 51, 54, 55, 60, 66, 67, 68, 72, 80, 81, 85, 88, 90, 99, 102, 108, 110, 120, 132, 134, 135, 136, 144, 153, 162, 165, 170, 176, 180, 187, 198, 201, 204, 216, 220, 240, 255, 264, 268, 270, 272, 297, 306, 324, 330, 335, 340, 360, 374, 396, 402, 405, 408, 432, 440, 459, 495, 510, 528, 536, 540, 561, 594, 603, 612, 648, 660, 670, 680, 720, 737, 748, 765, 792, 804, 810, 816, 880, 891, 918, 935, 990, 1005, 1020, 1072, 1080, 1122, 1139, 1188, 1206, 1224, 1296, 1320, 1340, 1360, 1377, 1474, 1485, 1496, 1530, 1584, 1608, 1620, 1683, 1782, 1809, 1836, 1870, 1980, 2010, 2040, 2160, 2211, 2244, 2278, 2295, 2376, 2412, 2448, 2640, 2680, 2754, 2805, 2948, 2970, 2992, 3015, 3060, 3216, 3240, 3366, 3417, 3564, 3618, 3672, 3685, 3740, 3960, 4020, 4080, 4422, 4455, 4488, 4556, 4590, 4752, 4824, 5049, 5360, 5427, 5508, 5610, 5695, 5896, 5940, 6030, 6120, 6480, 6633, 6732, 6834, 6885, 7128, 7236, 7344, 7370, 7480, 7920, 8040, 8415, 8844, 8910, 8976, 9045, 9112, 9180, 9648, 10098, 10251, 10854, 11016, 11055, 11220, 11390, 11792, 11880, 12060, 12240, 12529, 13266, 13464, 13668, 13770, 14256, 14472, 14740, 14960, 15147, 16080, 16830, 17085, 17688, 17820, 18090, 18224, 18360, 19899, 20196, 20502, 21708, 22032, 22110, 22440, 22780, 23760, 24120, 25058, 25245, 26532, 26928, 27135, 27336, 27540, 28944, 29480, 30294, 30753, 33165, 33660, 34170, 35376, 35640, 36180, 36720, 37587, 39798, 40392, 41004, 43416, 44220, 44880, 45560, 48240, 50116, 50490, 51255, 53064, 54270, 54672, 55080, 58960, 59697, 60588, 61506, 62645, 66330, 67320, 68340, 71280, 72360, 75174, 75735, 79596, 80784, 82008, 86832, 88440, 91120, 92259, 99495, 100232, 100980, 102510, 106128, 108540, 110160, 112761, 119394, 121176, 123012, 125290, 132660, 134640, 136680, 144720, 150348, 151470, 153765, 159192, 164016, 176880, 184518, 187935, 198990, 200464, 201960, 205020, 217080, 225522, 238788, 242352, 246024, 250580, 265320, 273360, 298485, 300696, 302940, 307530, 318384, 338283, 369036, 375870, 397980, 403920, 410040, 434160, 451044, 461295, 477576, 492048, 501160, 530640, 563805, 596970, 601392, 605880, 615060, 676566, 738072, 751740, 795960, 820080, 902088, 922590, 955152, 1002320, 1014849, 1127610, 1193940, 1211760, 1230120, 1353132, 1476144, 1503480, 1591920, 1691415, 1804176, 1845180, 2029698, 2255220, 2387880, 2460240, 2706264, 3006960, 3382830, 3690360, 4059396, 4510440, 4775760, 5074245, 5412528, 6765660, 7380720, 8118792, 9020880, 10148490, 13531320, 16237584, 20296980, 27062640, 40593960, 81187920]

約数ペア:
[(1, 81187920), (2, 40593960), (3, 27062640), (4, 20296980), (5, 16237584), (6, 13531320), (8, 10148490), (9, 9020880), (10, 8118792), (11, 7380720), (12, 6765660), (15, 5412528), (16, 5074245), (17, 4775760), (18, 4510440), (20, 4059396), (22, 3690360), (24, 3382830), (27, 3006960), (30, 2706264), (33, 2460240), (34, 2387880), (36, 2255220), (40, 2029698), (44, 1845180), (45, 1804176), (48, 1691415), (51, 1591920), (54, 1503480), (55, 1476144), (60, 1353132), (66, 1230120), (67, 1211760), (68, 1193940), (72, 1127610), (80, 1014849), (81, 1002320), (85, 955152), (88, 922590), (90, 902088), (99, 820080), (102, 795960), (108, 751740), (110, 738072), (120, 676566), (132, 615060), (134, 605880), (135, 601392), (136, 596970), (144, 563805), (153, 530640), (162, 501160), (165, 492048), (170, 477576), (176, 461295), (180, 451044), (187, 434160), (198, 410040), (201, 403920), (204, 397980), (216, 375870), (220, 369036), (240, 338283), (255, 318384), (264, 307530), (268, 302940), (270, 300696), (272, 298485), (297, 273360), (306, 265320), (324, 250580), (330, 246024), (335, 242352), (340, 238788), (360, 225522), (374, 217080), (396, 205020), (402, 201960), (405, 200464), (408, 198990), (432, 187935), (440, 184518), (459, 176880), (495, 164016), (510, 159192), (528, 153765), (536, 151470), (540, 150348), (561, 144720), (594, 136680), (603, 134640), (612, 132660), (648, 125290), (660, 123012), (670, 121176), (680, 119394), (720, 112761), (737, 110160), (748, 108540), (765, 106128), (792, 102510), (804, 100980), (810, 100232), (816, 99495), (880, 92259), (891, 91120), (918, 88440), (935, 86832), (990, 82008), (1005, 80784), (1020, 79596), (1072, 75735), (1080, 75174), (1122, 72360), (1139, 71280), (1188, 68340), (1206, 67320), (1224, 66330), (1296, 62645), (1320, 61506), (1340, 60588), (1360, 59697), (1377, 58960), (1474, 55080), (1485, 54672), (1496, 54270), (1530, 53064), (1584, 51255), (1608, 50490), (1620, 50116), (1683, 48240), (1782, 45560), (1809, 44880), (1836, 44220), (1870, 43416), (1980, 41004), (2010, 40392), (2040, 39798), (2160, 37587), (2211, 36720), (2244, 36180), (2278, 35640), (2295, 35376), (2376, 34170), (2412, 33660), (2448, 33165), (2640, 30753), (2680, 30294), (2754, 29480), (2805, 28944), (2948, 27540), (2970, 27336), (2992, 27135), (3015, 26928), (3060, 26532), (3216, 25245), (3240, 25058), (3366, 24120), (3417, 23760), (3564, 22780), (3618, 22440), (3672, 22110), (3685, 22032), (3740, 21708), (3960, 20502), (4020, 20196), (4080, 19899), (4422, 18360), (4455, 18224), (4488, 18090), (4556, 17820), (4590, 17688), (4752, 17085), (4824, 16830), (5049, 16080), (5360, 15147), (5427, 14960), (5508, 14740), (5610, 14472), (5695, 14256), (5896, 13770), (5940, 13668), (6030, 13464), (6120, 13266), (6480, 12529), (6633, 12240), (6732, 12060), (6834, 11880), (6885, 11792), (7128, 11390), (7236, 11220), (7344, 11055), (7370, 11016), (7480, 10854), (7920, 10251), (8040, 10098), (8415, 9648), (8844, 9180), (8910, 9112), (8976, 9045)]

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