20403516016

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{557}}^1$

素因数の和:664

約数の個数: 240

約数和(自身を含む): 48622602240

約数和(自身を除く): 28219086224

約数列:

[1, 2, 4, 8, 13, 16, 19, 23, 26, 31, 38, 46, 52, 62, 76, 92, 104, 124, 152, 169, 184, 208, 247, 248, 299, 304, 338, 368, 403, 437, 494, 496, 557, 589, 598, 676, 713, 806, 874, 988, 1114, 1178, 1196, 1352, 1426, 1612, 1748, 1976, 2228, 2356, 2392, 2704, 2852, 3211, 3224, 3496, 3887, 3952, 4456, 4712, 4784, 5239, 5681, 5704, 6422, 6448, 6992, 7241, 7657, 7774, 8912, 9269, 9424, 10478, 10583, 11362, 11408, 12811, 12844, 13547, 14482, 15314, 15548, 17267, 18538, 20956, 21166, 22724, 25622, 25688, 27094, 28964, 30628, 31096, 34534, 37076, 41912, 42332, 45448, 51244, 51376, 54188, 57928, 61256, 62192, 69068, 73853, 74152, 83824, 84664, 90896, 94133, 99541, 102488, 108376, 115856, 120497, 122512, 137579, 138136, 147706, 148304, 166543, 169328, 176111, 188266, 199082, 204976, 216752, 224471, 240994, 243409, 275158, 276272, 295412, 328073, 333086, 352222, 376532, 397141, 398164, 448942, 481988, 486818, 550316, 590824, 656146, 666172, 704444, 753064, 794282, 796328, 897884, 963976, 973636, 1100632, 1181648, 1312292, 1332344, 1408888, 1506128, 1588564, 1592656, 1788527, 1795768, 1927952, 1947272, 2165059, 2201264, 2289443, 2624584, 2664688, 2817776, 2918123, 3164317, 3177128, 3577054, 3591536, 3894544, 4264949, 4330118, 4578886, 5162833, 5249168, 5836246, 6328634, 6354256, 7154108, 7545679, 8529898, 8660236, 9157772, 10325666, 11672492, 12657268, 14308216, 15091358, 17059796, 17320472, 18315544, 20651332, 23344984, 25314536, 28616432, 30182716, 34119592, 34640944, 36631088, 41136121, 41302664, 46689968, 50629072, 55444337, 60365432, 67116829, 68239184, 82272242, 82605328, 98093827, 110888674, 120730864, 134233658, 164544484, 196187654, 221777348, 268467316, 329088968, 392375308, 443554696, 536934632, 658177936, 784750616, 887109392, 1073869264, 1275219751, 1569501232, 2550439502, 5100879004, 10201758008, 20403516016]

約数ペア:

[(1, 20403516016), (2, 10201758008), (4, 5100879004), (8, 2550439502), (13, 1569501232), (16, 1275219751), (19, 1073869264), (23, 887109392), (26, 784750616), (31, 658177936), (38, 536934632), (46, 443554696), (52, 392375308), (62, 329088968), (76, 268467316), (92, 221777348), (104, 196187654), (124, 164544484), (152, 134233658), (169, 120730864), (184, 110888674), (208, 98093827), (247, 82605328), (248, 82272242), (299, 68239184), (304, 67116829), (338, 60365432), (368, 55444337), (403, 50629072), (437, 46689968), (494, 41302664), (496, 41136121), (557, 36631088), (589, 34640944), (598, 34119592), (676, 30182716), (713, 28616432), (806, 25314536), (874, 23344984), (988, 20651332), (1114, 18315544), (1178, 17320472), (1196, 17059796), (1352, 15091358), (1426, 14308216), (1612, 12657268), (1748, 11672492), (1976, 10325666), (2228, 9157772), (2356, 8660236), (2392, 8529898), (2704, 7545679), (2852, 7154108), (3211, 6354256), (3224, 6328634), (3496, 5836246), (3887, 5249168), (3952, 5162833), (4456, 4578886), (4712, 4330118), (4784, 4264949), (5239, 3894544), (5681, 3591536), (5704, 3577054), (6422, 3177128), (6448, 3164317), (6992, 2918123), (7241, 2817776), (7657, 2664688), (7774, 2624584), (8912, 2289443), (9269, 2201264), (9424, 2165059), (10478, 1947272), (10583, 1927952), (11362, 1795768), (11408, 1788527), (12811, 1592656), (12844, 1588564), (13547, 1506128), (14482, 1408888), (15314, 1332344), (15548, 1312292), (17267, 1181648), (18538, 1100632), (20956, 973636), (21166, 963976), (22724, 897884), (25622, 796328), (25688, 794282), (27094, 753064), (28964, 704444), (30628, 666172), (31096, 656146), (34534, 590824), (37076, 550316), (41912, 486818), (42332, 481988), (45448, 448942), (51244, 398164), (51376, 397141), (54188, 376532), (57928, 352222), (61256, 333086), (62192, 328073), (69068, 295412), (73853, 276272), (74152, 275158), (83824, 243409), (84664, 240994), (90896, 224471), (94133, 216752), (99541, 204976), (102488, 199082), (108376, 188266), (115856, 176111), (120497, 169328), (122512, 166543), (137579, 148304), (138136, 147706)]