205612680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1044

約数の個数: 256

約数和(自身を含む): 799948800

約数和(自身を除く): 594336120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 19, 20, 21, 24, 26, 28, 30, 35, 38, 39, 40, 42, 52, 56, 57, 60, 65, 70, 76, 78, 84, 91, 95, 104, 105, 114, 120, 130, 133, 140, 152, 156, 168, 182, 190, 195, 210, 228, 247, 260, 266, 273, 280, 285, 312, 364, 380, 390, 399, 420, 455, 456, 494, 520, 532, 546, 570, 665, 728, 741, 760, 780, 798, 840, 910, 988, 991, 1064, 1092, 1140, 1235, 1330, 1365, 1482, 1560, 1596, 1729, 1820, 1976, 1982, 1995, 2184, 2280, 2470, 2660, 2730, 2964, 2973, 3192, 3458, 3640, 3705, 3964, 3990, 4940, 4955, 5187, 5320, 5460, 5928, 5946, 6916, 6937, 7410, 7928, 7980, 8645, 9880, 9910, 10374, 10920, 11892, 12883, 13832, 13874, 14820, 14865, 15960, 17290, 18829, 19820, 20748, 20811, 23784, 25766, 25935, 27748, 29640, 29730, 34580, 34685, 37658, 38649, 39640, 41496, 41622, 51532, 51870, 55496, 56487, 59460, 64415, 69160, 69370, 75316, 77298, 83244, 90181, 94145, 103064, 103740, 104055, 112974, 118920, 128830, 131803, 138740, 150632, 154596, 166488, 180362, 188290, 193245, 207480, 208110, 225948, 244777, 257660, 263606, 270543, 277480, 282435, 309192, 360724, 376580, 386490, 395409, 416220, 450905, 451896, 489554, 515320, 527212, 541086, 564870, 659015, 721448, 734331, 753160, 772980, 790818, 832440, 901810, 979108, 1054424, 1082172, 1129740, 1223885, 1318030, 1352715, 1468662, 1545960, 1581636, 1713439, 1803620, 1958216, 1977045, 2164344, 2259480, 2447770, 2636060, 2705430, 2937324, 3163272, 3426878, 3607240, 3671655, 3954090, 4895540, 5140317, 5272120, 5410860, 5874648, 6853756, 7343310, 7908180, 8567195, 9791080, 10280634, 10821720, 13707512, 14686620, 15816360, 17134390, 20561268, 25701585, 29373240, 34268780, 41122536, 51403170, 68537560, 102806340, 205612680]

約数ペア:

[(1, 205612680), (2, 102806340), (3, 68537560), (4, 51403170), (5, 41122536), (6, 34268780), (7, 29373240), (8, 25701585), (10, 20561268), (12, 17134390), (13, 15816360), (14, 14686620), (15, 13707512), (19, 10821720), (20, 10280634), (21, 9791080), (24, 8567195), (26, 7908180), (28, 7343310), (30, 6853756), (35, 5874648), (38, 5410860), (39, 5272120), (40, 5140317), (42, 4895540), (52, 3954090), (56, 3671655), (57, 3607240), (60, 3426878), (65, 3163272), (70, 2937324), (76, 2705430), (78, 2636060), (84, 2447770), (91, 2259480), (95, 2164344), (104, 1977045), (105, 1958216), (114, 1803620), (120, 1713439), (130, 1581636), (133, 1545960), (140, 1468662), (152, 1352715), (156, 1318030), (168, 1223885), (182, 1129740), (190, 1082172), (195, 1054424), (210, 979108), (228, 901810), (247, 832440), (260, 790818), (266, 772980), (273, 753160), (280, 734331), (285, 721448), (312, 659015), (364, 564870), (380, 541086), (390, 527212), (399, 515320), (420, 489554), (455, 451896), (456, 450905), (494, 416220), (520, 395409), (532, 386490), (546, 376580), (570, 360724), (665, 309192), (728, 282435), (741, 277480), (760, 270543), (780, 263606), (798, 257660), (840, 244777), (910, 225948), (988, 208110), (991, 207480), (1064, 193245), (1092, 188290), (1140, 180362), (1235, 166488), (1330, 154596), (1365, 150632), (1482, 138740), (1560, 131803), (1596, 128830), (1729, 118920), (1820, 112974), (1976, 104055), (1982, 103740), (1995, 103064), (2184, 94145), (2280, 90181), (2470, 83244), (2660, 77298), (2730, 75316), (2964, 69370), (2973, 69160), (3192, 64415), (3458, 59460), (3640, 56487), (3705, 55496), (3964, 51870), (3990, 51532), (4940, 41622), (4955, 41496), (5187, 39640), (5320, 38649), (5460, 37658), (5928, 34685), (5946, 34580), (6916, 29730), (6937, 29640), (7410, 27748), (7928, 25935), (7980, 25766), (8645, 23784), (9880, 20811), (9910, 20748), (10374, 19820), (10920, 18829), (11892, 17290), (12883, 15960), (13832, 14865), (13874, 14820)]