74477980

素因数分解:

$2^2\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{2819}}^1$

素因数の和:4149

約数の個数: 24

約数和(自身を含む): 156577680

約数和(自身を除く): 82099700

約数列:

[1, 2, 4, 5, 10, 20, 1321, 2642, 2819, 5284, 5638, 6605, 11276, 13210, 14095, 26420, 28190, 56380, 3723899, 7447798, 14895596, 18619495, 37238990, 74477980]

約数ペア:

[(1, 74477980), (2, 37238990), (4, 18619495), (5, 14895596), (10, 7447798), (20, 3723899), (1321, 56380), (2642, 28190), (2819, 26420), (5284, 14095), (5638, 13210), (6605, 11276)]