1800023680

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1067

約数の個数: 256

約数和(自身を含む): 5472552960

約数和(自身を除く): 3672529280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 32, 35, 40, 52, 56, 62, 64, 65, 70, 80, 91, 104, 112, 124, 128, 130, 140, 155, 160, 182, 208, 217, 224, 248, 260, 280, 310, 320, 364, 403, 416, 434, 448, 455, 496, 520, 560, 620, 640, 728, 806, 832, 868, 896, 910, 992, 997, 1040, 1085, 1120, 1240, 1456, 1612, 1664, 1736, 1820, 1984, 1994, 2015, 2080, 2170, 2240, 2480, 2821, 2912, 3224, 3472, 3640, 3968, 3988, 4030, 4160, 4340, 4480, 4960, 4985, 5642, 5824, 6448, 6944, 6979, 7280, 7976, 8060, 8320, 8680, 9920, 9970, 11284, 11648, 12896, 12961, 13888, 13958, 14105, 14560, 15952, 16120, 17360, 19840, 19940, 22568, 25792, 25922, 27776, 27916, 28210, 29120, 30907, 31904, 32240, 34720, 34895, 39880, 45136, 51584, 51844, 55832, 56420, 58240, 61814, 63808, 64480, 64805, 69440, 69790, 79760, 90272, 90727, 103688, 111664, 112840, 123628, 127616, 128960, 129610, 138880, 139580, 154535, 159520, 180544, 181454, 207376, 216349, 223328, 225680, 247256, 257920, 259220, 279160, 309070, 319040, 361088, 362908, 401791, 414752, 432698, 446656, 451360, 453635, 494512, 518440, 558320, 618140, 638080, 725816, 803582, 829504, 865396, 893312, 902720, 907270, 989024, 1036880, 1081745, 1116640, 1236280, 1451632, 1607164, 1659008, 1730792, 1805440, 1814540, 1978048, 2008955, 2073760, 2163490, 2233280, 2472560, 2812537, 2903264, 3214328, 3461584, 3629080, 3956096, 4017910, 4147520, 4326980, 4466560, 4945120, 5625074, 5806528, 6428656, 6923168, 7258160, 8035820, 8295040, 8653960, 9890240, 11250148, 11613056, 12857312, 13846336, 14062685, 14516320, 16071640, 17307920, 19780480, 22500296, 25714624, 27692672, 28125370, 29032640, 32143280, 34615840, 45000592, 51429248, 56250740, 58065280, 64286560, 69231680, 90001184, 112501480, 128573120, 138463360, 180002368, 225002960, 257146240, 360004736, 450005920, 900011840, 1800023680]

約数ペア:

[(1, 1800023680), (2, 900011840), (4, 450005920), (5, 360004736), (7, 257146240), (8, 225002960), (10, 180002368), (13, 138463360), (14, 128573120), (16, 112501480), (20, 90001184), (26, 69231680), (28, 64286560), (31, 58065280), (32, 56250740), (35, 51429248), (40, 45000592), (52, 34615840), (56, 32143280), (62, 29032640), (64, 28125370), (65, 27692672), (70, 25714624), (80, 22500296), (91, 19780480), (104, 17307920), (112, 16071640), (124, 14516320), (128, 14062685), (130, 13846336), (140, 12857312), (155, 11613056), (160, 11250148), (182, 9890240), (208, 8653960), (217, 8295040), (224, 8035820), (248, 7258160), (260, 6923168), (280, 6428656), (310, 5806528), (320, 5625074), (364, 4945120), (403, 4466560), (416, 4326980), (434, 4147520), (448, 4017910), (455, 3956096), (496, 3629080), (520, 3461584), (560, 3214328), (620, 2903264), (640, 2812537), (728, 2472560), (806, 2233280), (832, 2163490), (868, 2073760), (896, 2008955), (910, 1978048), (992, 1814540), (997, 1805440), (1040, 1730792), (1085, 1659008), (1120, 1607164), (1240, 1451632), (1456, 1236280), (1612, 1116640), (1664, 1081745), (1736, 1036880), (1820, 989024), (1984, 907270), (1994, 902720), (2015, 893312), (2080, 865396), (2170, 829504), (2240, 803582), (2480, 725816), (2821, 638080), (2912, 618140), (3224, 558320), (3472, 518440), (3640, 494512), (3968, 453635), (3988, 451360), (4030, 446656), (4160, 432698), (4340, 414752), (4480, 401791), (4960, 362908), (4985, 361088), (5642, 319040), (5824, 309070), (6448, 279160), (6944, 259220), (6979, 257920), (7280, 247256), (7976, 225680), (8060, 223328), (8320, 216349), (8680, 207376), (9920, 181454), (9970, 180544), (11284, 159520), (11648, 154535), (12896, 139580), (12961, 138880), (13888, 129610), (13958, 128960), (14105, 127616), (14560, 123628), (15952, 112840), (16120, 111664), (17360, 103688), (19840, 90727), (19940, 90272), (22568, 79760), (25792, 69790), (25922, 69440), (27776, 64805), (27916, 64480), (28210, 63808), (29120, 61814), (30907, 58240), (31904, 56420), (32240, 55832), (34720, 51844), (34895, 51584), (39880, 45136)]