1620868480

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1061}}^1$

素因数の和:1129

約数の個数: 256

約数和(自身を含む): 4991569920

約数和(自身を除く): 3370701440

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 31, 32, 35, 40, 44, 55, 56, 62, 64, 70, 77, 80, 88, 110, 112, 124, 128, 140, 154, 155, 160, 176, 217, 220, 224, 248, 280, 308, 310, 320, 341, 352, 385, 434, 440, 448, 496, 560, 616, 620, 640, 682, 704, 770, 868, 880, 896, 992, 1061, 1085, 1120, 1232, 1240, 1364, 1408, 1540, 1705, 1736, 1760, 1984, 2122, 2170, 2240, 2387, 2464, 2480, 2728, 3080, 3410, 3472, 3520, 3968, 4244, 4340, 4480, 4774, 4928, 4960, 5305, 5456, 6160, 6820, 6944, 7040, 7427, 8488, 8680, 9548, 9856, 9920, 10610, 10912, 11671, 11935, 12320, 13640, 13888, 14854, 16976, 17360, 19096, 19840, 21220, 21824, 23342, 23870, 24640, 27280, 27776, 29708, 32891, 33952, 34720, 37135, 38192, 42440, 43648, 46684, 47740, 49280, 54560, 58355, 59416, 65782, 67904, 69440, 74270, 76384, 81697, 84880, 93368, 95480, 109120, 116710, 118832, 131564, 135808, 138880, 148540, 152768, 163394, 164455, 169760, 186736, 190960, 218240, 230237, 233420, 237664, 263128, 297080, 305536, 326788, 328910, 339520, 361801, 373472, 381920, 408485, 460474, 466840, 475328, 526256, 594160, 653576, 657820, 679040, 723602, 746944, 763840, 816970, 920948, 933680, 950656, 1052512, 1151185, 1188320, 1307152, 1315640, 1447204, 1493888, 1527680, 1633940, 1809005, 1841896, 1867360, 2105024, 2302370, 2376640, 2532607, 2614304, 2631280, 2894408, 3267880, 3618010, 3683792, 3734720, 4210048, 4604740, 4753280, 5065214, 5228608, 5262560, 5788816, 6535760, 7236020, 7367584, 7469440, 9209480, 10130428, 10457216, 10525120, 11577632, 12663035, 13071520, 14472040, 14735168, 18418960, 20260856, 21050240, 23155264, 25326070, 26143040, 28944080, 29470336, 36837920, 40521712, 46310528, 50652140, 52286080, 57888160, 73675840, 81043424, 101304280, 115776320, 147351680, 162086848, 202608560, 231552640, 324173696, 405217120, 810434240, 1620868480]

約数ペア:

[(1, 1620868480), (2, 810434240), (4, 405217120), (5, 324173696), (7, 231552640), (8, 202608560), (10, 162086848), (11, 147351680), (14, 115776320), (16, 101304280), (20, 81043424), (22, 73675840), (28, 57888160), (31, 52286080), (32, 50652140), (35, 46310528), (40, 40521712), (44, 36837920), (55, 29470336), (56, 28944080), (62, 26143040), (64, 25326070), (70, 23155264), (77, 21050240), (80, 20260856), (88, 18418960), (110, 14735168), (112, 14472040), (124, 13071520), (128, 12663035), (140, 11577632), (154, 10525120), (155, 10457216), (160, 10130428), (176, 9209480), (217, 7469440), (220, 7367584), (224, 7236020), (248, 6535760), (280, 5788816), (308, 5262560), (310, 5228608), (320, 5065214), (341, 4753280), (352, 4604740), (385, 4210048), (434, 3734720), (440, 3683792), (448, 3618010), (496, 3267880), (560, 2894408), (616, 2631280), (620, 2614304), (640, 2532607), (682, 2376640), (704, 2302370), (770, 2105024), (868, 1867360), (880, 1841896), (896, 1809005), (992, 1633940), (1061, 1527680), (1085, 1493888), (1120, 1447204), (1232, 1315640), (1240, 1307152), (1364, 1188320), (1408, 1151185), (1540, 1052512), (1705, 950656), (1736, 933680), (1760, 920948), (1984, 816970), (2122, 763840), (2170, 746944), (2240, 723602), (2387, 679040), (2464, 657820), (2480, 653576), (2728, 594160), (3080, 526256), (3410, 475328), (3472, 466840), (3520, 460474), (3968, 408485), (4244, 381920), (4340, 373472), (4480, 361801), (4774, 339520), (4928, 328910), (4960, 326788), (5305, 305536), (5456, 297080), (6160, 263128), (6820, 237664), (6944, 233420), (7040, 230237), (7427, 218240), (8488, 190960), (8680, 186736), (9548, 169760), (9856, 164455), (9920, 163394), (10610, 152768), (10912, 148540), (11671, 138880), (11935, 135808), (12320, 131564), (13640, 118832), (13888, 116710), (14854, 109120), (16976, 95480), (17360, 93368), (19096, 84880), (19840, 81697), (21220, 76384), (21824, 74270), (23342, 69440), (23870, 67904), (24640, 65782), (27280, 59416), (27776, 58355), (29708, 54560), (32891, 49280), (33952, 47740), (34720, 46684), (37135, 43648), (38192, 42440)]