81372960

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56509}}^1$

素因数の和:56530

約数の個数: 72

約数和(自身を含む): 277690140

約数和(自身を除く): 196317180

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 56509, 113018, 169527, 226036, 282545, 339054, 452072, 508581, 565090, 678108, 847635, 904144, 1017162, 1130180, 1356216, 1695270, 1808288, 2034324, 2260360, 2542905, 2712432, 3390540, 4068648, 4520720, 5085810, 5424864, 6781080, 8137296, 9041440, 10171620, 13562160, 16274592, 20343240, 27124320, 40686480, 81372960]

約数ペア:

[(1, 81372960), (2, 40686480), (3, 27124320), (4, 20343240), (5, 16274592), (6, 13562160), (8, 10171620), (9, 9041440), (10, 8137296), (12, 6781080), (15, 5424864), (16, 5085810), (18, 4520720), (20, 4068648), (24, 3390540), (30, 2712432), (32, 2542905), (36, 2260360), (40, 2034324), (45, 1808288), (48, 1695270), (60, 1356216), (72, 1130180), (80, 1017162), (90, 904144), (96, 847635), (120, 678108), (144, 565090), (160, 508581), (180, 452072), (240, 339054), (288, 282545), (360, 226036), (480, 169527), (720, 113018), (1440, 56509)]