1990247760

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2767}}^1$

素因数の和:2832

約数の個数: 240

約数和(自身を含む): 7121377536

約数和(自身を除く): 5131129776

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 37, 40, 45, 48, 54, 60, 72, 74, 80, 81, 90, 108, 111, 120, 135, 144, 148, 162, 180, 185, 216, 222, 240, 243, 270, 296, 324, 333, 360, 370, 405, 432, 444, 486, 540, 555, 592, 648, 666, 720, 740, 810, 888, 972, 999, 1080, 1110, 1215, 1296, 1332, 1480, 1620, 1665, 1776, 1944, 1998, 2160, 2220, 2430, 2664, 2767, 2960, 2997, 3240, 3330, 3888, 3996, 4440, 4860, 4995, 5328, 5534, 5994, 6480, 6660, 7992, 8301, 8880, 8991, 9720, 9990, 11068, 11988, 13320, 13835, 14985, 15984, 16602, 17982, 19440, 19980, 22136, 23976, 24903, 26640, 27670, 29970, 33204, 35964, 39960, 41505, 44272, 44955, 47952, 49806, 55340, 59940, 66408, 71928, 74709, 79920, 83010, 89910, 99612, 102379, 110680, 119880, 124515, 132816, 143856, 149418, 166020, 179820, 199224, 204758, 221360, 224127, 239760, 249030, 298836, 307137, 332040, 359640, 373545, 398448, 409516, 448254, 498060, 511895, 597672, 614274, 664080, 672381, 719280, 747090, 819032, 896508, 921411, 996120, 1023790, 1120635, 1195344, 1228548, 1344762, 1494180, 1535685, 1638064, 1793016, 1842822, 1992240, 2047580, 2241270, 2457096, 2689524, 2764233, 2988360, 3071370, 3361905, 3586032, 3685644, 4095160, 4482540, 4607055, 4914192, 5379048, 5528466, 5976720, 6142740, 6723810, 7371288, 8190320, 8292699, 8965080, 9214110, 10758096, 11056932, 12285480, 13447620, 13821165, 14742576, 16585398, 17930160, 18428220, 22113864, 24570960, 24878097, 26895240, 27642330, 33170796, 36856440, 41463495, 44227728, 49756194, 53790480, 55284660, 66341592, 73712880, 82926990, 99512388, 110569320, 124390485, 132683184, 165853980, 199024776, 221138640, 248780970, 331707960, 398049552, 497561940, 663415920, 995123880, 1990247760]

約数ペア:

[(1, 1990247760), (2, 995123880), (3, 663415920), (4, 497561940), (5, 398049552), (6, 331707960), (8, 248780970), (9, 221138640), (10, 199024776), (12, 165853980), (15, 132683184), (16, 124390485), (18, 110569320), (20, 99512388), (24, 82926990), (27, 73712880), (30, 66341592), (36, 55284660), (37, 53790480), (40, 49756194), (45, 44227728), (48, 41463495), (54, 36856440), (60, 33170796), (72, 27642330), (74, 26895240), (80, 24878097), (81, 24570960), (90, 22113864), (108, 18428220), (111, 17930160), (120, 16585398), (135, 14742576), (144, 13821165), (148, 13447620), (162, 12285480), (180, 11056932), (185, 10758096), (216, 9214110), (222, 8965080), (240, 8292699), (243, 8190320), (270, 7371288), (296, 6723810), (324, 6142740), (333, 5976720), (360, 5528466), (370, 5379048), (405, 4914192), (432, 4607055), (444, 4482540), (486, 4095160), (540, 3685644), (555, 3586032), (592, 3361905), (648, 3071370), (666, 2988360), (720, 2764233), (740, 2689524), (810, 2457096), (888, 2241270), (972, 2047580), (999, 1992240), (1080, 1842822), (1110, 1793016), (1215, 1638064), (1296, 1535685), (1332, 1494180), (1480, 1344762), (1620, 1228548), (1665, 1195344), (1776, 1120635), (1944, 1023790), (1998, 996120), (2160, 921411), (2220, 896508), (2430, 819032), (2664, 747090), (2767, 719280), (2960, 672381), (2997, 664080), (3240, 614274), (3330, 597672), (3888, 511895), (3996, 498060), (4440, 448254), (4860, 409516), (4995, 398448), (5328, 373545), (5534, 359640), (5994, 332040), (6480, 307137), (6660, 298836), (7992, 249030), (8301, 239760), (8880, 224127), (8991, 221360), (9720, 204758), (9990, 199224), (11068, 179820), (11988, 166020), (13320, 149418), (13835, 143856), (14985, 132816), (15984, 124515), (16602, 119880), (17982, 110680), (19440, 102379), (19980, 99612), (22136, 89910), (23976, 83010), (24903, 79920), (26640, 74709), (27670, 71928), (29970, 66408), (33204, 59940), (35964, 55340), (39960, 49806), (41505, 47952), (44272, 44955)]