72628880

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8329}}^1$

素因数の和:8451

約数の個数: 40

約数和(自身を含む): 170431800

約数和(自身を除く): 97802920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8329, 8720, 16658, 33316, 41645, 66632, 83290, 133264, 166580, 333160, 666320, 907861, 1815722, 3631444, 4539305, 7262888, 9078610, 14525776, 18157220, 36314440, 72628880]

約数ペア:

[(1, 72628880), (2, 36314440), (4, 18157220), (5, 14525776), (8, 9078610), (10, 7262888), (16, 4539305), (20, 3631444), (40, 1815722), (80, 907861), (109, 666320), (218, 333160), (436, 166580), (545, 133264), (872, 83290), (1090, 66632), (1744, 41645), (2180, 33316), (4360, 16658), (8329, 8720)]