64644380

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{6637}}^1$

素因数の和:7133

約数の個数: 24

約数和(自身を含む): 136052448

約数和(自身を除く): 71408068

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4870, 6637, 9740, 13274, 26548, 33185, 66370, 132740, 3232219, 6464438, 12928876, 16161095, 32322190, 64644380]

約数ペア:

[(1, 64644380), (2, 32322190), (4, 16161095), (5, 12928876), (10, 6464438), (20, 3232219), (487, 132740), (974, 66370), (1948, 33185), (2435, 26548), (4870, 13274), (6637, 9740)]