1285196140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2072897}}^1$

素因数の和:2072937

約数の個数: 24

約数和(自身を含む): 2785974912

約数和(自身を除く): 1500778772

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2072897, 4145794, 8291588, 10364485, 20728970, 41457940, 64259807, 128519614, 257039228, 321299035, 642598070, 1285196140]

約数ペア:

[(1, 1285196140), (2, 642598070), (4, 321299035), (5, 257039228), (10, 128519614), (20, 64259807), (31, 41457940), (62, 20728970), (124, 10364485), (155, 8291588), (310, 4145794), (620, 2072897)]