81640188

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:129

約数の個数: 216

約数和(自身を含む): 268195200

約数和(自身を除く): 186555012

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 19, 21, 28, 34, 36, 38, 42, 51, 57, 59, 63, 68, 76, 84, 102, 114, 118, 119, 126, 133, 153, 171, 177, 204, 228, 236, 238, 252, 266, 289, 306, 323, 342, 354, 357, 399, 413, 476, 531, 532, 578, 612, 646, 684, 708, 714, 798, 826, 867, 969, 1003, 1062, 1071, 1121, 1156, 1197, 1239, 1292, 1428, 1596, 1652, 1734, 1938, 2006, 2023, 2124, 2142, 2242, 2261, 2394, 2478, 2601, 2907, 3009, 3363, 3468, 3717, 3876, 4012, 4046, 4284, 4484, 4522, 4788, 4956, 5202, 5491, 5814, 6018, 6069, 6726, 6783, 7021, 7434, 7847, 8092, 9027, 9044, 10089, 10404, 10982, 11628, 12036, 12138, 13452, 13566, 14042, 14868, 15694, 16473, 17051, 18054, 18207, 19057, 20178, 20349, 21063, 21964, 23541, 24276, 27132, 28084, 31388, 32946, 34102, 36108, 36414, 38114, 38437, 40356, 40698, 42126, 47082, 49419, 51153, 57171, 63189, 65892, 68204, 70623, 72828, 76228, 76874, 81396, 84252, 94164, 98838, 102306, 114342, 115311, 119357, 126378, 133399, 141246, 153459, 153748, 171513, 197676, 204612, 228684, 230622, 238714, 252756, 266798, 282492, 306918, 323969, 343026, 345933, 358071, 400197, 461244, 477428, 533596, 613836, 647938, 686052, 691866, 716142, 800394, 971907, 1074213, 1200591, 1295876, 1383732, 1432284, 1600788, 1943814, 2148426, 2267783, 2401182, 2915721, 3887628, 4296852, 4535566, 4802364, 5831442, 6803349, 9071132, 11662884, 13606698, 20410047, 27213396, 40820094, 81640188]

約数ペア:

[(1, 81640188), (2, 40820094), (3, 27213396), (4, 20410047), (6, 13606698), (7, 11662884), (9, 9071132), (12, 6803349), (14, 5831442), (17, 4802364), (18, 4535566), (19, 4296852), (21, 3887628), (28, 2915721), (34, 2401182), (36, 2267783), (38, 2148426), (42, 1943814), (51, 1600788), (57, 1432284), (59, 1383732), (63, 1295876), (68, 1200591), (76, 1074213), (84, 971907), (102, 800394), (114, 716142), (118, 691866), (119, 686052), (126, 647938), (133, 613836), (153, 533596), (171, 477428), (177, 461244), (204, 400197), (228, 358071), (236, 345933), (238, 343026), (252, 323969), (266, 306918), (289, 282492), (306, 266798), (323, 252756), (342, 238714), (354, 230622), (357, 228684), (399, 204612), (413, 197676), (476, 171513), (531, 153748), (532, 153459), (578, 141246), (612, 133399), (646, 126378), (684, 119357), (708, 115311), (714, 114342), (798, 102306), (826, 98838), (867, 94164), (969, 84252), (1003, 81396), (1062, 76874), (1071, 76228), (1121, 72828), (1156, 70623), (1197, 68204), (1239, 65892), (1292, 63189), (1428, 57171), (1596, 51153), (1652, 49419), (1734, 47082), (1938, 42126), (2006, 40698), (2023, 40356), (2124, 38437), (2142, 38114), (2242, 36414), (2261, 36108), (2394, 34102), (2478, 32946), (2601, 31388), (2907, 28084), (3009, 27132), (3363, 24276), (3468, 23541), (3717, 21964), (3876, 21063), (4012, 20349), (4046, 20178), (4284, 19057), (4484, 18207), (4522, 18054), (4788, 17051), (4956, 16473), (5202, 15694), (5491, 14868), (5814, 14042), (6018, 13566), (6069, 13452), (6726, 12138), (6783, 12036), (7021, 11628), (7434, 10982), (7847, 10404), (8092, 10089), (9027, 9044)]