81216840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{676807}}^1$

素因数の和:676821

約数の個数: 32

約数和(自身を含む): 243650880

約数和(自身を除く): 162434040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 676807, 1353614, 2030421, 2707228, 3384035, 4060842, 5414456, 6768070, 8121684, 10152105, 13536140, 16243368, 20304210, 27072280, 40608420, 81216840]

約数ペア:

[(1, 81216840), (2, 40608420), (3, 27072280), (4, 20304210), (5, 16243368), (6, 13536140), (8, 10152105), (10, 8121684), (12, 6768070), (15, 5414456), (20, 4060842), (24, 3384035), (30, 2707228), (40, 2030421), (60, 1353614), (120, 676807)]