1280974240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{907}}^1$

素因数の和:1039

約数の個数: 192

約数和(自身を含む): 3767226624

約数和(自身を除く): 2486252384

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 97, 104, 112, 130, 140, 160, 182, 194, 208, 224, 260, 280, 364, 388, 416, 455, 485, 520, 560, 679, 728, 776, 907, 910, 970, 1040, 1120, 1261, 1358, 1456, 1552, 1814, 1820, 1940, 2080, 2522, 2716, 2912, 3104, 3395, 3628, 3640, 3880, 4535, 5044, 5432, 6305, 6349, 6790, 7256, 7280, 7760, 8827, 9070, 10088, 10864, 11791, 12610, 12698, 13580, 14512, 14560, 15520, 17654, 18140, 20176, 21728, 23582, 25220, 25396, 27160, 29024, 31745, 35308, 36280, 40352, 44135, 47164, 50440, 50792, 54320, 58955, 63490, 70616, 72560, 82537, 87979, 88270, 94328, 100880, 101584, 108640, 117910, 126980, 141232, 145120, 165074, 175958, 176540, 188656, 201760, 203168, 235820, 253960, 282464, 330148, 351916, 353080, 377312, 412685, 439895, 471640, 507920, 615853, 660296, 703832, 706160, 825370, 879790, 943280, 1015840, 1143727, 1231706, 1320592, 1407664, 1412320, 1650740, 1759580, 1886560, 2287454, 2463412, 2641184, 2815328, 3079265, 3301480, 3519160, 4574908, 4926824, 5718635, 6158530, 6602960, 7038320, 8006089, 9149816, 9853648, 11437270, 12317060, 13205920, 14076640, 16012178, 18299632, 19707296, 22874540, 24634120, 32024356, 36599264, 40030445, 45749080, 49268240, 64048712, 80060890, 91498160, 98536480, 128097424, 160121780, 182996320, 256194848, 320243560, 640487120, 1280974240]

約数ペア:

[(1, 1280974240), (2, 640487120), (4, 320243560), (5, 256194848), (7, 182996320), (8, 160121780), (10, 128097424), (13, 98536480), (14, 91498160), (16, 80060890), (20, 64048712), (26, 49268240), (28, 45749080), (32, 40030445), (35, 36599264), (40, 32024356), (52, 24634120), (56, 22874540), (65, 19707296), (70, 18299632), (80, 16012178), (91, 14076640), (97, 13205920), (104, 12317060), (112, 11437270), (130, 9853648), (140, 9149816), (160, 8006089), (182, 7038320), (194, 6602960), (208, 6158530), (224, 5718635), (260, 4926824), (280, 4574908), (364, 3519160), (388, 3301480), (416, 3079265), (455, 2815328), (485, 2641184), (520, 2463412), (560, 2287454), (679, 1886560), (728, 1759580), (776, 1650740), (907, 1412320), (910, 1407664), (970, 1320592), (1040, 1231706), (1120, 1143727), (1261, 1015840), (1358, 943280), (1456, 879790), (1552, 825370), (1814, 706160), (1820, 703832), (1940, 660296), (2080, 615853), (2522, 507920), (2716, 471640), (2912, 439895), (3104, 412685), (3395, 377312), (3628, 353080), (3640, 351916), (3880, 330148), (4535, 282464), (5044, 253960), (5432, 235820), (6305, 203168), (6349, 201760), (6790, 188656), (7256, 176540), (7280, 175958), (7760, 165074), (8827, 145120), (9070, 141232), (10088, 126980), (10864, 117910), (11791, 108640), (12610, 101584), (12698, 100880), (13580, 94328), (14512, 88270), (14560, 87979), (15520, 82537), (17654, 72560), (18140, 70616), (20176, 63490), (21728, 58955), (23582, 54320), (25220, 50792), (25396, 50440), (27160, 47164), (29024, 44135), (31745, 40352), (35308, 36280)]