81490320

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1217}}^1$

素因数の和:1270

約数の個数: 160

約数和(自身を含む): 289981440

約数和(自身を除く): 208491120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 36, 40, 45, 48, 54, 60, 62, 72, 80, 90, 93, 108, 120, 124, 135, 144, 155, 180, 186, 216, 240, 248, 270, 279, 310, 360, 372, 432, 465, 496, 540, 558, 620, 720, 744, 837, 930, 1080, 1116, 1217, 1240, 1395, 1488, 1674, 1860, 2160, 2232, 2434, 2480, 2790, 3348, 3651, 3720, 4185, 4464, 4868, 5580, 6085, 6696, 7302, 7440, 8370, 9736, 10953, 11160, 12170, 13392, 14604, 16740, 18255, 19472, 21906, 22320, 24340, 29208, 32859, 33480, 36510, 37727, 43812, 48680, 54765, 58416, 65718, 66960, 73020, 75454, 87624, 97360, 109530, 113181, 131436, 146040, 150908, 164295, 175248, 188635, 219060, 226362, 262872, 292080, 301816, 328590, 339543, 377270, 438120, 452724, 525744, 565905, 603632, 657180, 679086, 754540, 876240, 905448, 1018629, 1131810, 1314360, 1358172, 1509080, 1697715, 1810896, 2037258, 2263620, 2628720, 2716344, 3018160, 3395430, 4074516, 4527240, 5093145, 5432688, 6790860, 8149032, 9054480, 10186290, 13581720, 16298064, 20372580, 27163440, 40745160, 81490320]

約数ペア:

[(1, 81490320), (2, 40745160), (3, 27163440), (4, 20372580), (5, 16298064), (6, 13581720), (8, 10186290), (9, 9054480), (10, 8149032), (12, 6790860), (15, 5432688), (16, 5093145), (18, 4527240), (20, 4074516), (24, 3395430), (27, 3018160), (30, 2716344), (31, 2628720), (36, 2263620), (40, 2037258), (45, 1810896), (48, 1697715), (54, 1509080), (60, 1358172), (62, 1314360), (72, 1131810), (80, 1018629), (90, 905448), (93, 876240), (108, 754540), (120, 679086), (124, 657180), (135, 603632), (144, 565905), (155, 525744), (180, 452724), (186, 438120), (216, 377270), (240, 339543), (248, 328590), (270, 301816), (279, 292080), (310, 262872), (360, 226362), (372, 219060), (432, 188635), (465, 175248), (496, 164295), (540, 150908), (558, 146040), (620, 131436), (720, 113181), (744, 109530), (837, 97360), (930, 87624), (1080, 75454), (1116, 73020), (1217, 66960), (1240, 65718), (1395, 58416), (1488, 54765), (1674, 48680), (1860, 43812), (2160, 37727), (2232, 36510), (2434, 33480), (2480, 32859), (2790, 29208), (3348, 24340), (3651, 22320), (3720, 21906), (4185, 19472), (4464, 18255), (4868, 16740), (5580, 14604), (6085, 13392), (6696, 12170), (7302, 11160), (7440, 10953), (8370, 9736)]