1999840128

素因数分解:

$2^7\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{461}}^1$

素因数の和:581

約数の個数: 256

約数和(自身を含む): 6333465600

約数和(自身を除く): 4333625472

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 16, 22, 24, 26, 32, 33, 39, 44, 48, 52, 64, 66, 78, 79, 88, 96, 104, 128, 132, 143, 156, 158, 176, 192, 208, 237, 264, 286, 312, 316, 352, 384, 416, 429, 461, 474, 528, 572, 624, 632, 704, 832, 858, 869, 922, 948, 1027, 1056, 1144, 1248, 1264, 1383, 1408, 1664, 1716, 1738, 1844, 1896, 2054, 2112, 2288, 2496, 2528, 2607, 2766, 3081, 3432, 3476, 3688, 3792, 4108, 4224, 4576, 4992, 5056, 5071, 5214, 5532, 5993, 6162, 6864, 6952, 7376, 7584, 8216, 9152, 10112, 10142, 10428, 11064, 11297, 11986, 12324, 13728, 13904, 14752, 15168, 15213, 16432, 17979, 18304, 20284, 20856, 22128, 22594, 23972, 24648, 27456, 27808, 29504, 30336, 30426, 32864, 33891, 35958, 36419, 40568, 41712, 44256, 45188, 47944, 49296, 54912, 55616, 59008, 60852, 65728, 65923, 67782, 71916, 72838, 81136, 83424, 88512, 90376, 95888, 98592, 109257, 111232, 121704, 131456, 131846, 135564, 143832, 145676, 162272, 166848, 177024, 180752, 191776, 197184, 197769, 218514, 243408, 263692, 271128, 287664, 291352, 324544, 333696, 361504, 383552, 394368, 395538, 400609, 437028, 473447, 486816, 527384, 542256, 575328, 582704, 649088, 723008, 767104, 791076, 801218, 874056, 946894, 973632, 1054768, 1084512, 1150656, 1165408, 1201827, 1420341, 1446016, 1582152, 1602436, 1748112, 1893788, 1947264, 2109536, 2169024, 2301312, 2330816, 2403654, 2840682, 3164304, 3204872, 3496224, 3787576, 4219072, 4338048, 4661632, 4807308, 5207917, 5681364, 6328608, 6409744, 6992448, 7575152, 8438144, 9614616, 10415834, 11362728, 12657216, 12819488, 13984896, 15150304, 15623751, 19229232, 20831668, 22725456, 25314432, 25638976, 30300608, 31247502, 38458464, 41663336, 45450912, 51277952, 60601216, 62495004, 76916928, 83326672, 90901824, 124990008, 153833856, 166653344, 181803648, 249980016, 333306688, 499960032, 666613376, 999920064, 1999840128]

約数ペア:

[(1, 1999840128), (2, 999920064), (3, 666613376), (4, 499960032), (6, 333306688), (8, 249980016), (11, 181803648), (12, 166653344), (13, 153833856), (16, 124990008), (22, 90901824), (24, 83326672), (26, 76916928), (32, 62495004), (33, 60601216), (39, 51277952), (44, 45450912), (48, 41663336), (52, 38458464), (64, 31247502), (66, 30300608), (78, 25638976), (79, 25314432), (88, 22725456), (96, 20831668), (104, 19229232), (128, 15623751), (132, 15150304), (143, 13984896), (156, 12819488), (158, 12657216), (176, 11362728), (192, 10415834), (208, 9614616), (237, 8438144), (264, 7575152), (286, 6992448), (312, 6409744), (316, 6328608), (352, 5681364), (384, 5207917), (416, 4807308), (429, 4661632), (461, 4338048), (474, 4219072), (528, 3787576), (572, 3496224), (624, 3204872), (632, 3164304), (704, 2840682), (832, 2403654), (858, 2330816), (869, 2301312), (922, 2169024), (948, 2109536), (1027, 1947264), (1056, 1893788), (1144, 1748112), (1248, 1602436), (1264, 1582152), (1383, 1446016), (1408, 1420341), (1664, 1201827), (1716, 1165408), (1738, 1150656), (1844, 1084512), (1896, 1054768), (2054, 973632), (2112, 946894), (2288, 874056), (2496, 801218), (2528, 791076), (2607, 767104), (2766, 723008), (3081, 649088), (3432, 582704), (3476, 575328), (3688, 542256), (3792, 527384), (4108, 486816), (4224, 473447), (4576, 437028), (4992, 400609), (5056, 395538), (5071, 394368), (5214, 383552), (5532, 361504), (5993, 333696), (6162, 324544), (6864, 291352), (6952, 287664), (7376, 271128), (7584, 263692), (8216, 243408), (9152, 218514), (10112, 197769), (10142, 197184), (10428, 191776), (11064, 180752), (11297, 177024), (11986, 166848), (12324, 162272), (13728, 145676), (13904, 143832), (14752, 135564), (15168, 131846), (15213, 131456), (16432, 121704), (17979, 111232), (18304, 109257), (20284, 98592), (20856, 95888), (22128, 90376), (22594, 88512), (23972, 83424), (24648, 81136), (27456, 72838), (27808, 71916), (29504, 67782), (30336, 65923), (30426, 65728), (32864, 60852), (33891, 59008), (35958, 55616), (36419, 54912), (40568, 49296), (41712, 47944), (44256, 45188)]