287708520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:224

約数の個数: 256

約数和(自身を含む): 995328000

約数和(自身を除く): 707619480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 31, 33, 40, 44, 55, 60, 62, 66, 79, 88, 89, 93, 110, 120, 124, 132, 155, 158, 165, 178, 186, 220, 237, 248, 264, 267, 310, 316, 330, 341, 356, 372, 395, 440, 445, 465, 474, 534, 620, 632, 660, 682, 712, 744, 790, 869, 890, 930, 948, 979, 1023, 1068, 1185, 1240, 1320, 1335, 1364, 1580, 1705, 1738, 1780, 1860, 1896, 1958, 2046, 2136, 2370, 2449, 2607, 2670, 2728, 2759, 2937, 3160, 3410, 3476, 3560, 3720, 3916, 4092, 4345, 4740, 4895, 4898, 5115, 5214, 5340, 5518, 5874, 6820, 6952, 7031, 7347, 7832, 8184, 8277, 8690, 9480, 9790, 9796, 10230, 10428, 10680, 11036, 11748, 12245, 13035, 13640, 13795, 14062, 14685, 14694, 16554, 17380, 19580, 19592, 20460, 20856, 21093, 22072, 23496, 24490, 26070, 26939, 27590, 28124, 29370, 29388, 30349, 33108, 34760, 35155, 36735, 39160, 40920, 41385, 42186, 48980, 52140, 53878, 55180, 56248, 58740, 58776, 60698, 66216, 70310, 73470, 77341, 80817, 82770, 84372, 91047, 97960, 104280, 105465, 107756, 110360, 117480, 121396, 134695, 140620, 146940, 151745, 154682, 161634, 165540, 168744, 182094, 210930, 215512, 217961, 232023, 242792, 269390, 281240, 293880, 303490, 309364, 323268, 331080, 364188, 386705, 404085, 421860, 435922, 455235, 464046, 538780, 606980, 618728, 646536, 653883, 728376, 773410, 808170, 843720, 871844, 910470, 928092, 1077560, 1089805, 1160115, 1213960, 1307766, 1546820, 1616340, 1743688, 1820940, 1856184, 2179610, 2320230, 2397571, 2615532, 3093640, 3232680, 3269415, 3641880, 4359220, 4640460, 4795142, 5231064, 6538830, 7192713, 8718440, 9280920, 9590284, 11987855, 13077660, 14385426, 19180568, 23975710, 26155320, 28770852, 35963565, 47951420, 57541704, 71927130, 95902840, 143854260, 287708520]

約数ペア:

[(1, 287708520), (2, 143854260), (3, 95902840), (4, 71927130), (5, 57541704), (6, 47951420), (8, 35963565), (10, 28770852), (11, 26155320), (12, 23975710), (15, 19180568), (20, 14385426), (22, 13077660), (24, 11987855), (30, 9590284), (31, 9280920), (33, 8718440), (40, 7192713), (44, 6538830), (55, 5231064), (60, 4795142), (62, 4640460), (66, 4359220), (79, 3641880), (88, 3269415), (89, 3232680), (93, 3093640), (110, 2615532), (120, 2397571), (124, 2320230), (132, 2179610), (155, 1856184), (158, 1820940), (165, 1743688), (178, 1616340), (186, 1546820), (220, 1307766), (237, 1213960), (248, 1160115), (264, 1089805), (267, 1077560), (310, 928092), (316, 910470), (330, 871844), (341, 843720), (356, 808170), (372, 773410), (395, 728376), (440, 653883), (445, 646536), (465, 618728), (474, 606980), (534, 538780), (620, 464046), (632, 455235), (660, 435922), (682, 421860), (712, 404085), (744, 386705), (790, 364188), (869, 331080), (890, 323268), (930, 309364), (948, 303490), (979, 293880), (1023, 281240), (1068, 269390), (1185, 242792), (1240, 232023), (1320, 217961), (1335, 215512), (1364, 210930), (1580, 182094), (1705, 168744), (1738, 165540), (1780, 161634), (1860, 154682), (1896, 151745), (1958, 146940), (2046, 140620), (2136, 134695), (2370, 121396), (2449, 117480), (2607, 110360), (2670, 107756), (2728, 105465), (2759, 104280), (2937, 97960), (3160, 91047), (3410, 84372), (3476, 82770), (3560, 80817), (3720, 77341), (3916, 73470), (4092, 70310), (4345, 66216), (4740, 60698), (4895, 58776), (4898, 58740), (5115, 56248), (5214, 55180), (5340, 53878), (5518, 52140), (5874, 48980), (6820, 42186), (6952, 41385), (7031, 40920), (7347, 39160), (7832, 36735), (8184, 35155), (8277, 34760), (8690, 33108), (9480, 30349), (9790, 29388), (9796, 29370), (10230, 28124), (10428, 27590), (10680, 26939), (11036, 26070), (11748, 24490), (12245, 23496), (13035, 22072), (13640, 21093), (13795, 20856), (14062, 20460), (14685, 19592), (14694, 19580), (16554, 17380)]