256513320

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{743}}^1$

素因数の和:904

約数の個数: 192

約数和(自身を含む): 961009920

約数和(自身を除く): 704496600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 137, 140, 168, 180, 210, 252, 274, 280, 315, 360, 411, 420, 504, 548, 630, 685, 743, 822, 840, 959, 1096, 1233, 1260, 1370, 1486, 1644, 1918, 2055, 2229, 2466, 2520, 2740, 2877, 2972, 3288, 3715, 3836, 4110, 4458, 4795, 4932, 5201, 5480, 5754, 5944, 6165, 6687, 7430, 7672, 8220, 8631, 8916, 9590, 9864, 10402, 11145, 11508, 12330, 13374, 14385, 14860, 15603, 16440, 17262, 17832, 19180, 20804, 22290, 23016, 24660, 26005, 26748, 28770, 29720, 31206, 33435, 34524, 38360, 41608, 43155, 44580, 46809, 49320, 52010, 53496, 57540, 62412, 66870, 69048, 78015, 86310, 89160, 93618, 101791, 104020, 115080, 124824, 133740, 156030, 172620, 187236, 203582, 208040, 234045, 267480, 305373, 312060, 345240, 374472, 407164, 468090, 508955, 610746, 624120, 712537, 814328, 916119, 936180, 1017910, 1221492, 1425074, 1526865, 1832238, 1872360, 2035820, 2137611, 2442984, 2850148, 3053730, 3562685, 3664476, 4071640, 4275222, 4580595, 5700296, 6107460, 6412833, 7125370, 7328952, 8550444, 9161190, 10688055, 12214920, 12825666, 14250740, 17100888, 18322380, 21376110, 25651332, 28501480, 32064165, 36644760, 42752220, 51302664, 64128330, 85504440, 128256660, 256513320]

約数ペア:

[(1, 256513320), (2, 128256660), (3, 85504440), (4, 64128330), (5, 51302664), (6, 42752220), (7, 36644760), (8, 32064165), (9, 28501480), (10, 25651332), (12, 21376110), (14, 18322380), (15, 17100888), (18, 14250740), (20, 12825666), (21, 12214920), (24, 10688055), (28, 9161190), (30, 8550444), (35, 7328952), (36, 7125370), (40, 6412833), (42, 6107460), (45, 5700296), (56, 4580595), (60, 4275222), (63, 4071640), (70, 3664476), (72, 3562685), (84, 3053730), (90, 2850148), (105, 2442984), (120, 2137611), (126, 2035820), (137, 1872360), (140, 1832238), (168, 1526865), (180, 1425074), (210, 1221492), (252, 1017910), (274, 936180), (280, 916119), (315, 814328), (360, 712537), (411, 624120), (420, 610746), (504, 508955), (548, 468090), (630, 407164), (685, 374472), (743, 345240), (822, 312060), (840, 305373), (959, 267480), (1096, 234045), (1233, 208040), (1260, 203582), (1370, 187236), (1486, 172620), (1644, 156030), (1918, 133740), (2055, 124824), (2229, 115080), (2466, 104020), (2520, 101791), (2740, 93618), (2877, 89160), (2972, 86310), (3288, 78015), (3715, 69048), (3836, 66870), (4110, 62412), (4458, 57540), (4795, 53496), (4932, 52010), (5201, 49320), (5480, 46809), (5754, 44580), (5944, 43155), (6165, 41608), (6687, 38360), (7430, 34524), (7672, 33435), (8220, 31206), (8631, 29720), (8916, 28770), (9590, 26748), (9864, 26005), (10402, 24660), (11145, 23016), (11508, 22290), (12330, 20804), (13374, 19180), (14385, 17832), (14860, 17262), (15603, 16440)]