4959280

素因数分解:

$2^4\times 5^1\times {\mathrm{61991}}^1$

素因数の和:62004

約数の個数: 20

約数和(自身を含む): 11530512

約数和(自身を除く): 6571232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 61991, 123982, 247964, 309955, 495928, 619910, 991856, 1239820, 2479640, 4959280]

約数ペア:

[(1, 4959280), (2, 2479640), (4, 1239820), (5, 991856), (8, 619910), (10, 495928), (16, 309955), (20, 247964), (40, 123982), (80, 61991)]