About the Number

12815880

12815879 ← → 12815881

2進数表記:110000111000111000001000

漢数字表記:千二百八十一万五千八百八十

素因数分解:

2 3 × 3 1 × 5 1 × 7 1 × 11 1 × 19 1 × 73 1

素因数の和:124
約数の個数: 256
約数和(自身を含む): 51148800
約数和(自身を除く): 38332920

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 19, 20, 21, 22, 24, 28, 30, 33, 35, 38, 40, 42, 44, 55, 56, 57, 60, 66, 70, 73, 76, 77, 84, 88, 95, 105, 110, 114, 120, 132, 133, 140, 146, 152, 154, 165, 168, 190, 209, 210, 219, 220, 228, 231, 264, 266, 280, 285, 292, 308, 330, 365, 380, 385, 399, 418, 420, 438, 440, 456, 462, 511, 532, 570, 584, 616, 627, 660, 665, 730, 760, 770, 798, 803, 836, 840, 876, 924, 1022, 1045, 1064, 1095, 1140, 1155, 1254, 1320, 1330, 1387, 1460, 1463, 1533, 1540, 1596, 1606, 1672, 1752, 1848, 1995, 2044, 2090, 2190, 2280, 2310, 2409, 2508, 2555, 2660, 2774, 2920, 2926, 3066, 3080, 3135, 3192, 3212, 3990, 4015, 4088, 4161, 4180, 4380, 4389, 4620, 4818, 5016, 5110, 5320, 5548, 5621, 5852, 6132, 6270, 6424, 6935, 7315, 7665, 7980, 8030, 8322, 8360, 8760, 8778, 9240, 9636, 9709, 10220, 11096, 11242, 11704, 12045, 12264, 12540, 13870, 14630, 15257, 15330, 15960, 16060, 16644, 16863, 17556, 19272, 19418, 20440, 20805, 21945, 22484, 24090, 25080, 27740, 28105, 29127, 29260, 30514, 30660, 32120, 33288, 33726, 35112, 38836, 41610, 43890, 44968, 45771, 48180, 48545, 55480, 56210, 58254, 58520, 61028, 61320, 67452, 76285, 77672, 83220, 84315, 87780, 91542, 96360, 97090, 106799, 112420, 116508, 122056, 134904, 145635, 152570, 166440, 168630, 175560, 183084, 194180, 213598, 224840, 228855, 233016, 291270, 305140, 320397, 337260, 366168, 388360, 427196, 457710, 533995, 582540, 610280, 640794, 674520, 854392, 915420, 1067990, 1165080, 1281588, 1601985, 1830840, 2135980, 2563176, 3203970, 4271960, 6407940, 12815880]

約数ペア:
[(1, 12815880), (2, 6407940), (3, 4271960), (4, 3203970), (5, 2563176), (6, 2135980), (7, 1830840), (8, 1601985), (10, 1281588), (11, 1165080), (12, 1067990), (14, 915420), (15, 854392), (19, 674520), (20, 640794), (21, 610280), (22, 582540), (24, 533995), (28, 457710), (30, 427196), (33, 388360), (35, 366168), (38, 337260), (40, 320397), (42, 305140), (44, 291270), (55, 233016), (56, 228855), (57, 224840), (60, 213598), (66, 194180), (70, 183084), (73, 175560), (76, 168630), (77, 166440), (84, 152570), (88, 145635), (95, 134904), (105, 122056), (110, 116508), (114, 112420), (120, 106799), (132, 97090), (133, 96360), (140, 91542), (146, 87780), (152, 84315), (154, 83220), (165, 77672), (168, 76285), (190, 67452), (209, 61320), (210, 61028), (219, 58520), (220, 58254), (228, 56210), (231, 55480), (264, 48545), (266, 48180), (280, 45771), (285, 44968), (292, 43890), (308, 41610), (330, 38836), (365, 35112), (380, 33726), (385, 33288), (399, 32120), (418, 30660), (420, 30514), (438, 29260), (440, 29127), (456, 28105), (462, 27740), (511, 25080), (532, 24090), (570, 22484), (584, 21945), (616, 20805), (627, 20440), (660, 19418), (665, 19272), (730, 17556), (760, 16863), (770, 16644), (798, 16060), (803, 15960), (836, 15330), (840, 15257), (876, 14630), (924, 13870), (1022, 12540), (1045, 12264), (1064, 12045), (1095, 11704), (1140, 11242), (1155, 11096), (1254, 10220), (1320, 9709), (1330, 9636), (1387, 9240), (1460, 8778), (1463, 8760), (1533, 8360), (1540, 8322), (1596, 8030), (1606, 7980), (1672, 7665), (1752, 7315), (1848, 6935), (1995, 6424), (2044, 6270), (2090, 6132), (2190, 5852), (2280, 5621), (2310, 5548), (2409, 5320), (2508, 5110), (2555, 5016), (2660, 4818), (2774, 4620), (2920, 4389), (2926, 4380), (3066, 4180), (3080, 4161), (3135, 4088), (3192, 4015), (3212, 3990)]

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