18556560

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1$

素因数の和:115

約数の個数: 240

約数和(自身を含む): 71245440

約数和(自身を除く): 52688880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 71, 72, 80, 88, 90, 99, 108, 110, 120, 121, 132, 135, 142, 144, 165, 176, 180, 198, 213, 216, 220, 240, 242, 264, 270, 284, 297, 330, 355, 360, 363, 396, 426, 432, 440, 484, 495, 528, 540, 568, 594, 605, 639, 660, 710, 720, 726, 781, 792, 852, 880, 968, 990, 1065, 1080, 1089, 1136, 1188, 1210, 1278, 1320, 1420, 1452, 1485, 1562, 1584, 1704, 1815, 1917, 1936, 1980, 2130, 2160, 2178, 2343, 2376, 2420, 2556, 2640, 2840, 2904, 2970, 3124, 3195, 3267, 3408, 3630, 3834, 3905, 3960, 4260, 4356, 4686, 4752, 4840, 5112, 5445, 5680, 5808, 5940, 6248, 6390, 6534, 7029, 7260, 7668, 7810, 7920, 8520, 8591, 8712, 9372, 9585, 9680, 10224, 10890, 11715, 11880, 12496, 12780, 13068, 14058, 14520, 15336, 15620, 16335, 17040, 17182, 17424, 18744, 19170, 21087, 21780, 23430, 23760, 25560, 25773, 26136, 28116, 29040, 30672, 31240, 32670, 34364, 35145, 37488, 38340, 42174, 42955, 43560, 46860, 51120, 51546, 52272, 56232, 62480, 65340, 68728, 70290, 76680, 77319, 84348, 85910, 87120, 93720, 103092, 105435, 112464, 128865, 130680, 137456, 140580, 153360, 154638, 168696, 171820, 187440, 206184, 210870, 231957, 257730, 261360, 281160, 309276, 337392, 343640, 386595, 412368, 421740, 463914, 515460, 562320, 618552, 687280, 773190, 843480, 927828, 1030920, 1159785, 1237104, 1546380, 1686960, 1855656, 2061840, 2319570, 3092760, 3711312, 4639140, 6185520, 9278280, 18556560]

約数ペア:

[(1, 18556560), (2, 9278280), (3, 6185520), (4, 4639140), (5, 3711312), (6, 3092760), (8, 2319570), (9, 2061840), (10, 1855656), (11, 1686960), (12, 1546380), (15, 1237104), (16, 1159785), (18, 1030920), (20, 927828), (22, 843480), (24, 773190), (27, 687280), (30, 618552), (33, 562320), (36, 515460), (40, 463914), (44, 421740), (45, 412368), (48, 386595), (54, 343640), (55, 337392), (60, 309276), (66, 281160), (71, 261360), (72, 257730), (80, 231957), (88, 210870), (90, 206184), (99, 187440), (108, 171820), (110, 168696), (120, 154638), (121, 153360), (132, 140580), (135, 137456), (142, 130680), (144, 128865), (165, 112464), (176, 105435), (180, 103092), (198, 93720), (213, 87120), (216, 85910), (220, 84348), (240, 77319), (242, 76680), (264, 70290), (270, 68728), (284, 65340), (297, 62480), (330, 56232), (355, 52272), (360, 51546), (363, 51120), (396, 46860), (426, 43560), (432, 42955), (440, 42174), (484, 38340), (495, 37488), (528, 35145), (540, 34364), (568, 32670), (594, 31240), (605, 30672), (639, 29040), (660, 28116), (710, 26136), (720, 25773), (726, 25560), (781, 23760), (792, 23430), (852, 21780), (880, 21087), (968, 19170), (990, 18744), (1065, 17424), (1080, 17182), (1089, 17040), (1136, 16335), (1188, 15620), (1210, 15336), (1278, 14520), (1320, 14058), (1420, 13068), (1452, 12780), (1485, 12496), (1562, 11880), (1584, 11715), (1704, 10890), (1815, 10224), (1917, 9680), (1936, 9585), (1980, 9372), (2130, 8712), (2160, 8591), (2178, 8520), (2343, 7920), (2376, 7810), (2420, 7668), (2556, 7260), (2640, 7029), (2840, 6534), (2904, 6390), (2970, 6248), (3124, 5940), (3195, 5808), (3267, 5680), (3408, 5445), (3630, 5112), (3834, 4840), (3905, 4752), (3960, 4686), (4260, 4356)]