81188640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4337}}^1$

素因数の和:4371

約数の個数: 144

約数和(自身を含む): 298437048

約数和(自身を除く): 217248408

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1170, 1248, 1440, 1560, 1872, 2080, 2340, 3120, 3744, 4337, 4680, 6240, 8674, 9360, 13011, 17348, 18720, 21685, 26022, 34696, 39033, 43370, 52044, 56381, 65055, 69392, 78066, 86740, 104088, 112762, 130110, 138784, 156132, 169143, 173480, 195165, 208176, 225524, 260220, 281905, 312264, 338286, 346960, 390330, 416352, 451048, 507429, 520440, 563810, 624528, 676572, 693920, 780660, 845715, 902096, 1014858, 1040880, 1127620, 1249056, 1353144, 1561320, 1691430, 1804192, 2029716, 2081760, 2255240, 2537145, 2706288, 3122640, 3382860, 4059432, 4510480, 5074290, 5412576, 6245280, 6765720, 8118864, 9020960, 10148580, 13531440, 16237728, 20297160, 27062880, 40594320, 81188640]

約数ペア:

[(1, 81188640), (2, 40594320), (3, 27062880), (4, 20297160), (5, 16237728), (6, 13531440), (8, 10148580), (9, 9020960), (10, 8118864), (12, 6765720), (13, 6245280), (15, 5412576), (16, 5074290), (18, 4510480), (20, 4059432), (24, 3382860), (26, 3122640), (30, 2706288), (32, 2537145), (36, 2255240), (39, 2081760), (40, 2029716), (45, 1804192), (48, 1691430), (52, 1561320), (60, 1353144), (65, 1249056), (72, 1127620), (78, 1040880), (80, 1014858), (90, 902096), (96, 845715), (104, 780660), (117, 693920), (120, 676572), (130, 624528), (144, 563810), (156, 520440), (160, 507429), (180, 451048), (195, 416352), (208, 390330), (234, 346960), (240, 338286), (260, 312264), (288, 281905), (312, 260220), (360, 225524), (390, 208176), (416, 195165), (468, 173480), (480, 169143), (520, 156132), (585, 138784), (624, 130110), (720, 112762), (780, 104088), (936, 86740), (1040, 78066), (1170, 69392), (1248, 65055), (1440, 56381), (1560, 52044), (1872, 43370), (2080, 39033), (2340, 34696), (3120, 26022), (3744, 21685), (4337, 18720), (4680, 17348), (6240, 13011), (8674, 9360)]