81344760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{541}}^1$

素因数の和:741

約数の個数: 128

約数和(自身を含む): 280972800

約数和(自身を除く): 199628040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 179, 210, 280, 358, 420, 537, 541, 716, 840, 895, 1074, 1082, 1253, 1432, 1623, 1790, 2148, 2164, 2506, 2685, 2705, 3246, 3580, 3759, 3787, 4296, 4328, 5012, 5370, 5410, 6265, 6492, 7160, 7518, 7574, 8115, 10024, 10740, 10820, 11361, 12530, 12984, 15036, 15148, 16230, 18795, 18935, 21480, 21640, 22722, 25060, 30072, 30296, 32460, 37590, 37870, 45444, 50120, 56805, 64920, 75180, 75740, 90888, 96839, 113610, 150360, 151480, 193678, 227220, 290517, 387356, 454440, 484195, 581034, 677873, 774712, 968390, 1162068, 1355746, 1452585, 1936780, 2033619, 2324136, 2711492, 2905170, 3389365, 3873560, 4067238, 5422984, 5810340, 6778730, 8134476, 10168095, 11620680, 13557460, 16268952, 20336190, 27114920, 40672380, 81344760]

約数ペア:

[(1, 81344760), (2, 40672380), (3, 27114920), (4, 20336190), (5, 16268952), (6, 13557460), (7, 11620680), (8, 10168095), (10, 8134476), (12, 6778730), (14, 5810340), (15, 5422984), (20, 4067238), (21, 3873560), (24, 3389365), (28, 2905170), (30, 2711492), (35, 2324136), (40, 2033619), (42, 1936780), (56, 1452585), (60, 1355746), (70, 1162068), (84, 968390), (105, 774712), (120, 677873), (140, 581034), (168, 484195), (179, 454440), (210, 387356), (280, 290517), (358, 227220), (420, 193678), (537, 151480), (541, 150360), (716, 113610), (840, 96839), (895, 90888), (1074, 75740), (1082, 75180), (1253, 64920), (1432, 56805), (1623, 50120), (1790, 45444), (2148, 37870), (2164, 37590), (2506, 32460), (2685, 30296), (2705, 30072), (3246, 25060), (3580, 22722), (3759, 21640), (3787, 21480), (4296, 18935), (4328, 18795), (5012, 16230), (5370, 15148), (5410, 15036), (6265, 12984), (6492, 12530), (7160, 11361), (7518, 10820), (7574, 10740), (8115, 10024)]