81001440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4327}}^1$

素因数の和:4361

約数の個数: 144

約数和(自身を含む): 297749088

約数和(自身を除く): 216747648

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, 4327, 4680, 6240, 8654, 9360, 12981, 17308, 18720, 21635, 25962, 34616, 38943, 43270, 51924, 56251, 64905, 69232, 77886, 86540, 103848, 112502, 129810, 138464, 155772, 168753, 173080, 194715, 207696, 225004, 259620, 281255, 311544, 337506, 346160, 389430, 415392, 450008, 506259, 519240, 562510, 623088, 675012, 692320, 778860, 843765, 900016, 1012518, 1038480, 1125020, 1246176, 1350024, 1557720, 1687530, 1800032, 2025036, 2076960, 2250040, 2531295, 2700048, 3115440, 3375060, 4050072, 4500080, 5062590, 5400096, 6230880, 6750120, 8100144, 9000160, 10125180, 13500240, 16200288, 20250360, 27000480, 40500720, 81001440]

約数ペア:

[(1, 81001440), (2, 40500720), (3, 27000480), (4, 20250360), (5, 16200288), (6, 13500240), (8, 10125180), (9, 9000160), (10, 8100144), (12, 6750120), (13, 6230880), (15, 5400096), (16, 5062590), (18, 4500080), (20, 4050072), (24, 3375060), (26, 3115440), (30, 2700048), (32, 2531295), (36, 2250040), (39, 2076960), (40, 2025036), (45, 1800032), (48, 1687530), (52, 1557720), (60, 1350024), (65, 1246176), (72, 1125020), (78, 1038480), (80, 1012518), (90, 900016), (96, 843765), (104, 778860), (117, 692320), (120, 675012), (130, 623088), (144, 562510), (156, 519240), (160, 506259), (180, 450008), (195, 415392), (208, 389430), (234, 346160), (240, 337506), (260, 311544), (288, 281255), (312, 259620), (360, 225004), (390, 207696), (416, 194715), (468, 173080), (480, 168753), (520, 155772), (585, 138464), (624, 129810), (720, 112502), (780, 103848), (936, 86540), (1040, 77886), (1170, 69232), (1248, 64905), (1440, 56251), (1560, 51924), (1872, 43270), (2080, 38943), (2340, 34616), (3120, 25962), (3744, 21635), (4327, 18720), (4680, 17308), (6240, 12981), (8654, 9360)]