81367650

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1987}}^1$

素因数の和:2025

約数の個数: 144

約数和(自身を含む): 269191104

約数和(自身を除く): 187823454

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 25, 26, 30, 35, 39, 42, 45, 50, 63, 65, 70, 75, 78, 90, 91, 105, 117, 126, 130, 150, 175, 182, 195, 210, 225, 234, 273, 315, 325, 350, 390, 450, 455, 525, 546, 585, 630, 650, 819, 910, 975, 1050, 1170, 1365, 1575, 1638, 1950, 1987, 2275, 2730, 2925, 3150, 3974, 4095, 4550, 5850, 5961, 6825, 8190, 9935, 11922, 13650, 13909, 17883, 19870, 20475, 25831, 27818, 29805, 35766, 40950, 41727, 49675, 51662, 59610, 69545, 77493, 83454, 89415, 99350, 125181, 129155, 139090, 149025, 154986, 178830, 180817, 208635, 232479, 250362, 258310, 298050, 347725, 361634, 387465, 417270, 447075, 464958, 542451, 625905, 645775, 695450, 774930, 894150, 904085, 1043175, 1084902, 1162395, 1251810, 1291550, 1627353, 1808170, 1937325, 2086350, 2324790, 2712255, 3129525, 3254706, 3874650, 4520425, 5424510, 5811975, 6259050, 8136765, 9040850, 11623950, 13561275, 16273530, 27122550, 40683825, 81367650]

約数ペア:

[(1, 81367650), (2, 40683825), (3, 27122550), (5, 16273530), (6, 13561275), (7, 11623950), (9, 9040850), (10, 8136765), (13, 6259050), (14, 5811975), (15, 5424510), (18, 4520425), (21, 3874650), (25, 3254706), (26, 3129525), (30, 2712255), (35, 2324790), (39, 2086350), (42, 1937325), (45, 1808170), (50, 1627353), (63, 1291550), (65, 1251810), (70, 1162395), (75, 1084902), (78, 1043175), (90, 904085), (91, 894150), (105, 774930), (117, 695450), (126, 645775), (130, 625905), (150, 542451), (175, 464958), (182, 447075), (195, 417270), (210, 387465), (225, 361634), (234, 347725), (273, 298050), (315, 258310), (325, 250362), (350, 232479), (390, 208635), (450, 180817), (455, 178830), (525, 154986), (546, 149025), (585, 139090), (630, 129155), (650, 125181), (819, 99350), (910, 89415), (975, 83454), (1050, 77493), (1170, 69545), (1365, 59610), (1575, 51662), (1638, 49675), (1950, 41727), (1987, 40950), (2275, 35766), (2730, 29805), (2925, 27818), (3150, 25831), (3974, 20475), (4095, 19870), (4550, 17883), (5850, 13909), (5961, 13650), (6825, 11922), (8190, 9935)]