64800

素因数分解:

$2^5\times 3^4\times 5^2$

素因数の和:32

約数の個数: 90

約数和(自身を含む): 236313

約数和(自身を除く): 171513

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60, 72, 75, 80, 81, 90, 96, 100, 108, 120, 135, 144, 150, 160, 162, 180, 200, 216, 225, 240, 270, 288, 300, 324, 360, 400, 405, 432, 450, 480, 540, 600, 648, 675, 720, 800, 810, 864, 900, 1080, 1200, 1296, 1350, 1440, 1620, 1800, 2025, 2160, 2400, 2592, 2700, 3240, 3600, 4050, 4320, 5400, 6480, 7200, 8100, 10800, 12960, 16200, 21600, 32400, 64800]

約数ペア:

[(1, 64800), (2, 32400), (3, 21600), (4, 16200), (5, 12960), (6, 10800), (8, 8100), (9, 7200), (10, 6480), (12, 5400), (15, 4320), (16, 4050), (18, 3600), (20, 3240), (24, 2700), (25, 2592), (27, 2400), (30, 2160), (32, 2025), (36, 1800), (40, 1620), (45, 1440), (48, 1350), (50, 1296), (54, 1200), (60, 1080), (72, 900), (75, 864), (80, 810), (81, 800), (90, 720), (96, 675), (100, 648), (108, 600), (120, 540), (135, 480), (144, 450), (150, 432), (160, 405), (162, 400), (180, 360), (200, 324), (216, 300), (225, 288), (240, 270)]