66541940

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{8297}}^1$

素因数の和:8707

約数の個数: 24

約数和(自身を含む): 140103432

約数和(自身を除く): 73561492

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 8297, 16594, 33188, 41485, 82970, 165940, 3327097, 6654194, 13308388, 16635485, 33270970, 66541940]

約数ペア:

[(1, 66541940), (2, 33270970), (4, 16635485), (5, 13308388), (10, 6654194), (20, 3327097), (401, 165940), (802, 82970), (1604, 41485), (2005, 33188), (4010, 16594), (8020, 8297)]