81680400

素因数分解:

$2^4\times 3^4\times 5^2\times {\mathrm{2521}}^1$

素因数の和:2551

約数の個数: 150

約数和(自身を含む): 293260682

約数和(自身を除く): 211580282

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 36, 40, 45, 48, 50, 54, 60, 72, 75, 80, 81, 90, 100, 108, 120, 135, 144, 150, 162, 180, 200, 216, 225, 240, 270, 300, 324, 360, 400, 405, 432, 450, 540, 600, 648, 675, 720, 810, 900, 1080, 1200, 1296, 1350, 1620, 1800, 2025, 2160, 2521, 2700, 3240, 3600, 4050, 5042, 5400, 6480, 7563, 8100, 10084, 10800, 12605, 15126, 16200, 20168, 22689, 25210, 30252, 32400, 37815, 40336, 45378, 50420, 60504, 63025, 68067, 75630, 90756, 100840, 113445, 121008, 126050, 136134, 151260, 181512, 189075, 201680, 204201, 226890, 252100, 272268, 302520, 340335, 363024, 378150, 408402, 453780, 504200, 544536, 567225, 605040, 680670, 756300, 816804, 907560, 1008400, 1021005, 1089072, 1134450, 1361340, 1512600, 1633608, 1701675, 1815120, 2042010, 2268900, 2722680, 3025200, 3267216, 3403350, 4084020, 4537800, 5105025, 5445360, 6806700, 8168040, 9075600, 10210050, 13613400, 16336080, 20420100, 27226800, 40840200, 81680400]

約数ペア:

[(1, 81680400), (2, 40840200), (3, 27226800), (4, 20420100), (5, 16336080), (6, 13613400), (8, 10210050), (9, 9075600), (10, 8168040), (12, 6806700), (15, 5445360), (16, 5105025), (18, 4537800), (20, 4084020), (24, 3403350), (25, 3267216), (27, 3025200), (30, 2722680), (36, 2268900), (40, 2042010), (45, 1815120), (48, 1701675), (50, 1633608), (54, 1512600), (60, 1361340), (72, 1134450), (75, 1089072), (80, 1021005), (81, 1008400), (90, 907560), (100, 816804), (108, 756300), (120, 680670), (135, 605040), (144, 567225), (150, 544536), (162, 504200), (180, 453780), (200, 408402), (216, 378150), (225, 363024), (240, 340335), (270, 302520), (300, 272268), (324, 252100), (360, 226890), (400, 204201), (405, 201680), (432, 189075), (450, 181512), (540, 151260), (600, 136134), (648, 126050), (675, 121008), (720, 113445), (810, 100840), (900, 90756), (1080, 75630), (1200, 68067), (1296, 63025), (1350, 60504), (1620, 50420), (1800, 45378), (2025, 40336), (2160, 37815), (2521, 32400), (2700, 30252), (3240, 25210), (3600, 22689), (4050, 20168), (5042, 16200), (5400, 15126), (6480, 12605), (7563, 10800), (8100, 10084)]