989897454

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1871}}^1$

素因数の和:1935

約数の個数: 192

約数和(自身を含む): 2943682560

約数和(自身を除く): 1953785106

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 17, 18, 19, 21, 26, 34, 38, 39, 42, 51, 57, 63, 78, 91, 102, 114, 117, 119, 126, 133, 153, 171, 182, 221, 234, 238, 247, 266, 273, 306, 323, 342, 357, 399, 442, 494, 546, 646, 663, 714, 741, 798, 819, 969, 1071, 1197, 1326, 1482, 1547, 1638, 1729, 1871, 1938, 1989, 2142, 2223, 2261, 2394, 2907, 3094, 3458, 3742, 3978, 4199, 4446, 4522, 4641, 5187, 5613, 5814, 6783, 8398, 9282, 10374, 11226, 12597, 13097, 13566, 13923, 15561, 16839, 20349, 24323, 25194, 26194, 27846, 29393, 31122, 31807, 33678, 35549, 37791, 39291, 40698, 48646, 58786, 63614, 71098, 72969, 75582, 78582, 88179, 95421, 106647, 117873, 145938, 170261, 176358, 190842, 213294, 218907, 222649, 235746, 248843, 264537, 286263, 319941, 340522, 413491, 437814, 445298, 462137, 497686, 510783, 529074, 572526, 604333, 639882, 667947, 746529, 826982, 924274, 1021566, 1208666, 1240473, 1335894, 1386411, 1493058, 1532349, 1812999, 2003841, 2239587, 2480946, 2772822, 2894437, 3064698, 3234959, 3625998, 3721419, 4007682, 4159233, 4230331, 4479174, 5438997, 5788874, 6469918, 7442838, 7856329, 8318466, 8460662, 8683311, 9704877, 10877994, 12690993, 15712658, 17366622, 19409754, 23568987, 25381986, 26049933, 29114631, 38072979, 47137974, 52099866, 54994303, 58229262, 70706961, 76145958, 109988606, 141413922, 164982909, 329965818, 494948727, 989897454]

約数ペア:

[(1, 989897454), (2, 494948727), (3, 329965818), (6, 164982909), (7, 141413922), (9, 109988606), (13, 76145958), (14, 70706961), (17, 58229262), (18, 54994303), (19, 52099866), (21, 47137974), (26, 38072979), (34, 29114631), (38, 26049933), (39, 25381986), (42, 23568987), (51, 19409754), (57, 17366622), (63, 15712658), (78, 12690993), (91, 10877994), (102, 9704877), (114, 8683311), (117, 8460662), (119, 8318466), (126, 7856329), (133, 7442838), (153, 6469918), (171, 5788874), (182, 5438997), (221, 4479174), (234, 4230331), (238, 4159233), (247, 4007682), (266, 3721419), (273, 3625998), (306, 3234959), (323, 3064698), (342, 2894437), (357, 2772822), (399, 2480946), (442, 2239587), (494, 2003841), (546, 1812999), (646, 1532349), (663, 1493058), (714, 1386411), (741, 1335894), (798, 1240473), (819, 1208666), (969, 1021566), (1071, 924274), (1197, 826982), (1326, 746529), (1482, 667947), (1547, 639882), (1638, 604333), (1729, 572526), (1871, 529074), (1938, 510783), (1989, 497686), (2142, 462137), (2223, 445298), (2261, 437814), (2394, 413491), (2907, 340522), (3094, 319941), (3458, 286263), (3742, 264537), (3978, 248843), (4199, 235746), (4446, 222649), (4522, 218907), (4641, 213294), (5187, 190842), (5613, 176358), (5814, 170261), (6783, 145938), (8398, 117873), (9282, 106647), (10374, 95421), (11226, 88179), (12597, 78582), (13097, 75582), (13566, 72969), (13923, 71098), (15561, 63614), (16839, 58786), (20349, 48646), (24323, 40698), (25194, 39291), (26194, 37791), (27846, 35549), (29393, 33678), (31122, 31807)]