1981213560

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1697}}^1$

素因数の和:1787

約数の個数: 256

約数和(自身を含む): 7041945600

約数和(自身を除く): 5060732040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 47, 54, 60, 69, 72, 90, 92, 94, 108, 115, 120, 135, 138, 141, 180, 184, 188, 207, 216, 230, 235, 270, 276, 282, 345, 360, 376, 414, 423, 460, 470, 540, 552, 564, 621, 690, 705, 828, 846, 920, 940, 1035, 1080, 1081, 1128, 1242, 1269, 1380, 1410, 1656, 1692, 1697, 1880, 2070, 2115, 2162, 2484, 2538, 2760, 2820, 3105, 3243, 3384, 3394, 4140, 4230, 4324, 4968, 5076, 5091, 5405, 5640, 6210, 6345, 6486, 6788, 8280, 8460, 8485, 8648, 9729, 10152, 10182, 10810, 12420, 12690, 12972, 13576, 15273, 16215, 16920, 16970, 19458, 20364, 21620, 24840, 25380, 25455, 25944, 29187, 30546, 32430, 33940, 38916, 39031, 40728, 43240, 45819, 48645, 50760, 50910, 58374, 61092, 64860, 67880, 76365, 77832, 78062, 79759, 91638, 97290, 101820, 116748, 117093, 122184, 129720, 145935, 152730, 156124, 159518, 183276, 194580, 195155, 203640, 229095, 233496, 234186, 239277, 291870, 305460, 312248, 319036, 351279, 366552, 389160, 390310, 398795, 458190, 468372, 478554, 583740, 585465, 610920, 638072, 702558, 717831, 780620, 797590, 916380, 936744, 957108, 1053837, 1167480, 1170930, 1196385, 1405116, 1435662, 1561240, 1595180, 1756395, 1832760, 1834457, 1914216, 2107674, 2153493, 2341860, 2392770, 2810232, 2871324, 3190360, 3512790, 3589155, 3668914, 4215348, 4306986, 4683720, 4785540, 5269185, 5503371, 5742648, 7025580, 7178310, 7337828, 8430696, 8613972, 9172285, 9571080, 10538370, 10767465, 11006742, 14051160, 14356620, 14675656, 16510113, 17227944, 18344570, 21076740, 21534930, 22013484, 27516855, 28713240, 33020226, 36689140, 42153480, 43069860, 44026968, 49530339, 55033710, 66040452, 73378280, 82550565, 86139720, 99060678, 110067420, 132080904, 165101130, 198121356, 220134840, 247651695, 330202260, 396242712, 495303390, 660404520, 990606780, 1981213560]

約数ペア:

[(1, 1981213560), (2, 990606780), (3, 660404520), (4, 495303390), (5, 396242712), (6, 330202260), (8, 247651695), (9, 220134840), (10, 198121356), (12, 165101130), (15, 132080904), (18, 110067420), (20, 99060678), (23, 86139720), (24, 82550565), (27, 73378280), (30, 66040452), (36, 55033710), (40, 49530339), (45, 44026968), (46, 43069860), (47, 42153480), (54, 36689140), (60, 33020226), (69, 28713240), (72, 27516855), (90, 22013484), (92, 21534930), (94, 21076740), (108, 18344570), (115, 17227944), (120, 16510113), (135, 14675656), (138, 14356620), (141, 14051160), (180, 11006742), (184, 10767465), (188, 10538370), (207, 9571080), (216, 9172285), (230, 8613972), (235, 8430696), (270, 7337828), (276, 7178310), (282, 7025580), (345, 5742648), (360, 5503371), (376, 5269185), (414, 4785540), (423, 4683720), (460, 4306986), (470, 4215348), (540, 3668914), (552, 3589155), (564, 3512790), (621, 3190360), (690, 2871324), (705, 2810232), (828, 2392770), (846, 2341860), (920, 2153493), (940, 2107674), (1035, 1914216), (1080, 1834457), (1081, 1832760), (1128, 1756395), (1242, 1595180), (1269, 1561240), (1380, 1435662), (1410, 1405116), (1656, 1196385), (1692, 1170930), (1697, 1167480), (1880, 1053837), (2070, 957108), (2115, 936744), (2162, 916380), (2484, 797590), (2538, 780620), (2760, 717831), (2820, 702558), (3105, 638072), (3243, 610920), (3384, 585465), (3394, 583740), (4140, 478554), (4230, 468372), (4324, 458190), (4968, 398795), (5076, 390310), (5091, 389160), (5405, 366552), (5640, 351279), (6210, 319036), (6345, 312248), (6486, 305460), (6788, 291870), (8280, 239277), (8460, 234186), (8485, 233496), (8648, 229095), (9729, 203640), (10152, 195155), (10182, 194580), (10810, 183276), (12420, 159518), (12690, 156124), (12972, 152730), (13576, 145935), (15273, 129720), (16215, 122184), (16920, 117093), (16970, 116748), (19458, 101820), (20364, 97290), (21620, 91638), (24840, 79759), (25380, 78062), (25455, 77832), (25944, 76365), (29187, 67880), (30546, 64860), (32430, 61092), (33940, 58374), (38916, 50910), (39031, 50760), (40728, 48645), (43240, 45819)]