20989671890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:289

約数の個数: 192

約数和(自身を含む): 45402819840

約数和(自身を除く): 24413147950

約数列:

[1, 2, 5, 10, 11, 22, 23, 31, 46, 55, 62, 89, 97, 110, 115, 155, 178, 194, 230, 253, 310, 341, 445, 485, 506, 682, 713, 890, 961, 970, 979, 1067, 1265, 1426, 1705, 1922, 1958, 2047, 2134, 2231, 2530, 2759, 3007, 3410, 3565, 4094, 4462, 4805, 4895, 5335, 5518, 6014, 7130, 7843, 8633, 9610, 9790, 10235, 10571, 10670, 11155, 13795, 15035, 15686, 17266, 20470, 21142, 22103, 22310, 22517, 24541, 27590, 30070, 30349, 33077, 39215, 43165, 44206, 45034, 49082, 52855, 60698, 63457, 66154, 69161, 78430, 85529, 86330, 93217, 94963, 105710, 110515, 112585, 122705, 126914, 138322, 151745, 165385, 171058, 186434, 189926, 198559, 221030, 225170, 243133, 245410, 267623, 303490, 317285, 330770, 345805, 397118, 427645, 466085, 474815, 486266, 535246, 634570, 691610, 698027, 760771, 855290, 932170, 940819, 949630, 992795, 1025387, 1215665, 1338115, 1396054, 1521542, 1881638, 1967167, 1985590, 2050774, 2143991, 2184149, 2431330, 2676230, 2943853, 3490135, 3803855, 3934334, 4287982, 4368298, 4704095, 5126935, 5887706, 6155329, 6980270, 7607710, 8296313, 9408190, 9835835, 10253870, 10719955, 10920745, 12310658, 14719265, 16592626, 19671670, 21439910, 21638837, 21841490, 23583901, 29438530, 30776645, 41481565, 43277674, 47167802, 61553290, 67708619, 82963130, 91259443, 108194185, 117919505, 135417238, 182518886, 190815199, 216388370, 235839010, 338543095, 381630398, 456297215, 677086190, 912594430, 954075995, 1908151990, 2098967189, 4197934378, 10494835945, 20989671890]

約数ペア:

[(1, 20989671890), (2, 10494835945), (5, 4197934378), (10, 2098967189), (11, 1908151990), (22, 954075995), (23, 912594430), (31, 677086190), (46, 456297215), (55, 381630398), (62, 338543095), (89, 235839010), (97, 216388370), (110, 190815199), (115, 182518886), (155, 135417238), (178, 117919505), (194, 108194185), (230, 91259443), (253, 82963130), (310, 67708619), (341, 61553290), (445, 47167802), (485, 43277674), (506, 41481565), (682, 30776645), (713, 29438530), (890, 23583901), (961, 21841490), (970, 21638837), (979, 21439910), (1067, 19671670), (1265, 16592626), (1426, 14719265), (1705, 12310658), (1922, 10920745), (1958, 10719955), (2047, 10253870), (2134, 9835835), (2231, 9408190), (2530, 8296313), (2759, 7607710), (3007, 6980270), (3410, 6155329), (3565, 5887706), (4094, 5126935), (4462, 4704095), (4805, 4368298), (4895, 4287982), (5335, 3934334), (5518, 3803855), (6014, 3490135), (7130, 2943853), (7843, 2676230), (8633, 2431330), (9610, 2184149), (9790, 2143991), (10235, 2050774), (10571, 1985590), (10670, 1967167), (11155, 1881638), (13795, 1521542), (15035, 1396054), (15686, 1338115), (17266, 1215665), (20470, 1025387), (21142, 992795), (22103, 949630), (22310, 940819), (22517, 932170), (24541, 855290), (27590, 760771), (30070, 698027), (30349, 691610), (33077, 634570), (39215, 535246), (43165, 486266), (44206, 474815), (45034, 466085), (49082, 427645), (52855, 397118), (60698, 345805), (63457, 330770), (66154, 317285), (69161, 303490), (78430, 267623), (85529, 245410), (86330, 243133), (93217, 225170), (94963, 221030), (105710, 198559), (110515, 189926), (112585, 186434), (122705, 171058), (126914, 165385), (138322, 151745)]