18009792008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:639

約数の個数: 128

約数和(自身を含む): 38080627200

約数和(自身を除く): 20070835192

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 59, 94, 104, 118, 188, 197, 236, 317, 376, 394, 472, 611, 634, 767, 788, 1222, 1268, 1534, 1576, 2444, 2536, 2561, 2773, 3068, 4121, 4888, 5122, 5546, 6136, 8242, 9259, 10244, 11092, 11623, 14899, 16484, 18518, 18703, 20488, 22184, 23246, 29798, 32968, 36049, 37036, 37406, 46492, 59596, 62449, 72098, 74072, 74812, 92984, 119192, 120367, 124898, 144196, 149624, 151099, 193687, 240734, 243139, 249796, 288392, 302198, 387374, 481468, 486278, 499592, 546281, 604396, 774748, 811837, 879041, 962936, 972556, 1092562, 1208792, 1549496, 1623674, 1758082, 1945112, 2185124, 2935103, 3247348, 3516164, 3684491, 4370248, 5870206, 6494696, 7032328, 7101653, 7368982, 11427533, 11740412, 14203306, 14737964, 22855066, 23480824, 28406612, 29475928, 38156339, 45710132, 47898383, 56813224, 76312678, 91420264, 95796766, 152625356, 173171077, 191593532, 305250712, 346342154, 383187064, 692684308, 1385368616, 2251224001, 4502448002, 9004896004, 18009792008]

約数ペア:

[(1, 18009792008), (2, 9004896004), (4, 4502448002), (8, 2251224001), (13, 1385368616), (26, 692684308), (47, 383187064), (52, 346342154), (59, 305250712), (94, 191593532), (104, 173171077), (118, 152625356), (188, 95796766), (197, 91420264), (236, 76312678), (317, 56813224), (376, 47898383), (394, 45710132), (472, 38156339), (611, 29475928), (634, 28406612), (767, 23480824), (788, 22855066), (1222, 14737964), (1268, 14203306), (1534, 11740412), (1576, 11427533), (2444, 7368982), (2536, 7101653), (2561, 7032328), (2773, 6494696), (3068, 5870206), (4121, 4370248), (4888, 3684491), (5122, 3516164), (5546, 3247348), (6136, 2935103), (8242, 2185124), (9259, 1945112), (10244, 1758082), (11092, 1623674), (11623, 1549496), (14899, 1208792), (16484, 1092562), (18518, 972556), (18703, 962936), (20488, 879041), (22184, 811837), (23246, 774748), (29798, 604396), (32968, 546281), (36049, 499592), (37036, 486278), (37406, 481468), (46492, 387374), (59596, 302198), (62449, 288392), (72098, 249796), (74072, 243139), (74812, 240734), (92984, 193687), (119192, 151099), (120367, 149624), (124898, 144196)]