1980084120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{73}}^1\times {\mathrm{659}}^1$

素因数の和:767

約数の個数: 256

約数和(自身を含む): 7032960000

約数和(自身を除く): 5052875880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 73, 84, 98, 105, 120, 140, 146, 147, 168, 196, 210, 219, 245, 280, 292, 294, 343, 365, 392, 420, 438, 490, 511, 584, 588, 659, 686, 730, 735, 840, 876, 980, 1022, 1029, 1095, 1176, 1318, 1372, 1460, 1470, 1533, 1715, 1752, 1960, 1977, 2044, 2058, 2190, 2555, 2636, 2744, 2920, 2940, 3066, 3295, 3430, 3577, 3954, 4088, 4116, 4380, 4613, 5110, 5145, 5272, 5880, 6132, 6590, 6860, 7154, 7665, 7908, 8232, 8760, 9226, 9885, 10220, 10290, 10731, 12264, 13180, 13720, 13839, 14308, 15330, 15816, 17885, 18452, 19770, 20440, 20580, 21462, 23065, 25039, 26360, 27678, 28616, 30660, 32291, 35770, 36904, 39540, 41160, 42924, 46130, 48107, 50078, 53655, 55356, 61320, 64582, 69195, 71540, 75117, 79080, 85848, 92260, 96214, 96873, 100156, 107310, 110712, 125195, 129164, 138390, 143080, 144321, 150234, 161455, 184520, 192428, 193746, 200312, 214620, 226037, 240535, 250390, 258328, 276780, 288642, 300468, 322910, 336749, 375585, 384856, 387492, 429240, 452074, 481070, 484365, 500780, 553560, 577284, 600936, 645820, 673498, 678111, 721605, 751170, 774984, 904148, 962140, 968730, 1001560, 1010247, 1130185, 1154568, 1291640, 1346996, 1356222, 1443210, 1502340, 1683745, 1808296, 1924280, 1937460, 2020494, 2260370, 2357243, 2693992, 2712444, 2886420, 3004680, 3367490, 3390555, 3874920, 4040988, 4520740, 4714486, 5051235, 5424888, 5772840, 6734980, 6781110, 7071729, 8081976, 9041480, 9428972, 10102470, 11786215, 13469960, 13562220, 14143458, 16500701, 18857944, 20204940, 23572430, 27124440, 28286916, 33001402, 35358645, 40409880, 47144860, 49502103, 56573832, 66002804, 70717290, 82503505, 94289720, 99004206, 132005608, 141434580, 165007010, 198008412, 247510515, 282869160, 330014020, 396016824, 495021030, 660028040, 990042060, 1980084120]

約数ペア:

[(1, 1980084120), (2, 990042060), (3, 660028040), (4, 495021030), (5, 396016824), (6, 330014020), (7, 282869160), (8, 247510515), (10, 198008412), (12, 165007010), (14, 141434580), (15, 132005608), (20, 99004206), (21, 94289720), (24, 82503505), (28, 70717290), (30, 66002804), (35, 56573832), (40, 49502103), (42, 47144860), (49, 40409880), (56, 35358645), (60, 33001402), (70, 28286916), (73, 27124440), (84, 23572430), (98, 20204940), (105, 18857944), (120, 16500701), (140, 14143458), (146, 13562220), (147, 13469960), (168, 11786215), (196, 10102470), (210, 9428972), (219, 9041480), (245, 8081976), (280, 7071729), (292, 6781110), (294, 6734980), (343, 5772840), (365, 5424888), (392, 5051235), (420, 4714486), (438, 4520740), (490, 4040988), (511, 3874920), (584, 3390555), (588, 3367490), (659, 3004680), (686, 2886420), (730, 2712444), (735, 2693992), (840, 2357243), (876, 2260370), (980, 2020494), (1022, 1937460), (1029, 1924280), (1095, 1808296), (1176, 1683745), (1318, 1502340), (1372, 1443210), (1460, 1356222), (1470, 1346996), (1533, 1291640), (1715, 1154568), (1752, 1130185), (1960, 1010247), (1977, 1001560), (2044, 968730), (2058, 962140), (2190, 904148), (2555, 774984), (2636, 751170), (2744, 721605), (2920, 678111), (2940, 673498), (3066, 645820), (3295, 600936), (3430, 577284), (3577, 553560), (3954, 500780), (4088, 484365), (4116, 481070), (4380, 452074), (4613, 429240), (5110, 387492), (5145, 384856), (5272, 375585), (5880, 336749), (6132, 322910), (6590, 300468), (6860, 288642), (7154, 276780), (7665, 258328), (7908, 250390), (8232, 240535), (8760, 226037), (9226, 214620), (9885, 200312), (10220, 193746), (10290, 192428), (10731, 184520), (12264, 161455), (13180, 150234), (13720, 144321), (13839, 143080), (14308, 138390), (15330, 129164), (15816, 125195), (17885, 110712), (18452, 107310), (19770, 100156), (20440, 96873), (20580, 96214), (21462, 92260), (23065, 85848), (25039, 79080), (26360, 75117), (27678, 71540), (28616, 69195), (30660, 64582), (32291, 61320), (35770, 55356), (36904, 53655), (39540, 50078), (41160, 48107), (42924, 46130)]