2478442640

素因数分解:

$2^4\times 5^1\times {\mathrm{30980533}}^1$

素因数の和:30980546

約数の個数: 20

約数和(自身を含む): 5762379324

約数和(自身を除く): 3283936684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 30980533, 61961066, 123922132, 154902665, 247844264, 309805330, 495688528, 619610660, 1239221320, 2478442640]

約数ペア:

[(1, 2478442640), (2, 1239221320), (4, 619610660), (5, 495688528), (8, 309805330), (10, 247844264), (16, 154902665), (20, 123922132), (40, 61961066), (80, 30980533)]