81327960

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{547}}^1$

素因数の和:630

約数の個数: 192

約数和(自身を含む): 307756800

約数和(自身を除く): 226428840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 59, 60, 63, 70, 72, 84, 90, 105, 118, 120, 126, 140, 168, 177, 180, 210, 236, 252, 280, 295, 315, 354, 360, 413, 420, 472, 504, 531, 547, 590, 630, 708, 826, 840, 885, 1062, 1094, 1180, 1239, 1260, 1416, 1641, 1652, 1770, 2065, 2124, 2188, 2360, 2478, 2520, 2655, 2735, 3282, 3304, 3540, 3717, 3829, 4130, 4248, 4376, 4923, 4956, 5310, 5470, 6195, 6564, 7080, 7434, 7658, 8205, 8260, 9846, 9912, 10620, 10940, 11487, 12390, 13128, 14868, 15316, 16410, 16520, 18585, 19145, 19692, 21240, 21880, 22974, 24615, 24780, 29736, 30632, 32273, 32820, 34461, 37170, 38290, 39384, 45948, 49230, 49560, 57435, 64546, 65640, 68922, 74340, 76580, 91896, 96819, 98460, 114870, 129092, 137844, 148680, 153160, 161365, 172305, 193638, 196920, 225911, 229740, 258184, 275688, 290457, 322730, 344610, 387276, 451822, 459480, 484095, 580914, 645460, 677733, 689220, 774552, 903644, 968190, 1129555, 1161828, 1290920, 1355466, 1378440, 1452285, 1807288, 1936380, 2033199, 2259110, 2323656, 2710932, 2904570, 3388665, 3872760, 4066398, 4518220, 5421864, 5809140, 6777330, 8132796, 9036440, 10165995, 11618280, 13554660, 16265592, 20331990, 27109320, 40663980, 81327960]

約数ペア:

[(1, 81327960), (2, 40663980), (3, 27109320), (4, 20331990), (5, 16265592), (6, 13554660), (7, 11618280), (8, 10165995), (9, 9036440), (10, 8132796), (12, 6777330), (14, 5809140), (15, 5421864), (18, 4518220), (20, 4066398), (21, 3872760), (24, 3388665), (28, 2904570), (30, 2710932), (35, 2323656), (36, 2259110), (40, 2033199), (42, 1936380), (45, 1807288), (56, 1452285), (59, 1378440), (60, 1355466), (63, 1290920), (70, 1161828), (72, 1129555), (84, 968190), (90, 903644), (105, 774552), (118, 689220), (120, 677733), (126, 645460), (140, 580914), (168, 484095), (177, 459480), (180, 451822), (210, 387276), (236, 344610), (252, 322730), (280, 290457), (295, 275688), (315, 258184), (354, 229740), (360, 225911), (413, 196920), (420, 193638), (472, 172305), (504, 161365), (531, 153160), (547, 148680), (590, 137844), (630, 129092), (708, 114870), (826, 98460), (840, 96819), (885, 91896), (1062, 76580), (1094, 74340), (1180, 68922), (1239, 65640), (1260, 64546), (1416, 57435), (1641, 49560), (1652, 49230), (1770, 45948), (2065, 39384), (2124, 38290), (2188, 37170), (2360, 34461), (2478, 32820), (2520, 32273), (2655, 30632), (2735, 29736), (3282, 24780), (3304, 24615), (3540, 22974), (3717, 21880), (3829, 21240), (4130, 19692), (4248, 19145), (4376, 18585), (4923, 16520), (4956, 16410), (5310, 15316), (5470, 14868), (6195, 13128), (6564, 12390), (7080, 11487), (7434, 10940), (7658, 10620), (8205, 9912), (8260, 9846)]