81396840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:264

約数の個数: 192

約数和(自身を含む): 288921600

約数和(自身を除く): 207524760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 109, 120, 127, 140, 147, 168, 196, 210, 218, 245, 254, 280, 294, 327, 381, 392, 420, 436, 490, 508, 545, 588, 635, 654, 735, 762, 763, 840, 872, 889, 980, 1016, 1090, 1176, 1270, 1308, 1470, 1524, 1526, 1635, 1778, 1905, 1960, 2180, 2289, 2540, 2616, 2667, 2940, 3048, 3052, 3270, 3556, 3810, 3815, 4360, 4445, 4578, 5080, 5334, 5341, 5880, 6104, 6223, 6540, 7112, 7620, 7630, 8890, 9156, 10668, 10682, 11445, 12446, 13080, 13335, 13843, 15240, 15260, 16023, 17780, 18312, 18669, 21336, 21364, 22890, 24892, 26670, 26705, 27686, 30520, 31115, 32046, 35560, 37338, 41529, 42728, 45780, 49784, 53340, 53410, 55372, 62230, 64092, 69215, 74676, 80115, 83058, 91560, 93345, 96901, 106680, 106820, 110744, 124460, 128184, 138430, 149352, 160230, 166116, 186690, 193802, 207645, 213640, 248920, 276860, 290703, 320460, 332232, 373380, 387604, 415290, 484505, 553720, 581406, 640920, 678307, 746760, 775208, 830580, 969010, 1162812, 1356614, 1453515, 1661160, 1938020, 2034921, 2325624, 2713228, 2907030, 3391535, 3876040, 4069842, 5426456, 5814060, 6783070, 8139684, 10174605, 11628120, 13566140, 16279368, 20349210, 27132280, 40698420, 81396840]

約数ペア:

[(1, 81396840), (2, 40698420), (3, 27132280), (4, 20349210), (5, 16279368), (6, 13566140), (7, 11628120), (8, 10174605), (10, 8139684), (12, 6783070), (14, 5814060), (15, 5426456), (20, 4069842), (21, 3876040), (24, 3391535), (28, 2907030), (30, 2713228), (35, 2325624), (40, 2034921), (42, 1938020), (49, 1661160), (56, 1453515), (60, 1356614), (70, 1162812), (84, 969010), (98, 830580), (105, 775208), (109, 746760), (120, 678307), (127, 640920), (140, 581406), (147, 553720), (168, 484505), (196, 415290), (210, 387604), (218, 373380), (245, 332232), (254, 320460), (280, 290703), (294, 276860), (327, 248920), (381, 213640), (392, 207645), (420, 193802), (436, 186690), (490, 166116), (508, 160230), (545, 149352), (588, 138430), (635, 128184), (654, 124460), (735, 110744), (762, 106820), (763, 106680), (840, 96901), (872, 93345), (889, 91560), (980, 83058), (1016, 80115), (1090, 74676), (1176, 69215), (1270, 64092), (1308, 62230), (1470, 55372), (1524, 53410), (1526, 53340), (1635, 49784), (1778, 45780), (1905, 42728), (1960, 41529), (2180, 37338), (2289, 35560), (2540, 32046), (2616, 31115), (2667, 30520), (2940, 27686), (3048, 26705), (3052, 26670), (3270, 24892), (3556, 22890), (3810, 21364), (3815, 21336), (4360, 18669), (4445, 18312), (4578, 17780), (5080, 16023), (5334, 15260), (5341, 15240), (5880, 13843), (6104, 13335), (6223, 13080), (6540, 12446), (7112, 11445), (7620, 10682), (7630, 10668), (8890, 9156)]