19256859280

素因数分解:

$2^4\times 5^1\times {\mathrm{240710741}}^1$

素因数の和:240710754

約数の個数: 20

約数和(自身を含む): 44772198012

約数和(自身を除く): 25515338732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 240710741, 481421482, 962842964, 1203553705, 1925685928, 2407107410, 3851371856, 4814214820, 9628429640, 19256859280]

約数ペア:

[(1, 19256859280), (2, 9628429640), (4, 4814214820), (5, 3851371856), (8, 2407107410), (10, 1925685928), (16, 1203553705), (20, 962842964), (40, 481421482), (80, 240710741)]