40779280

素因数分解:

$2^4\times 5^1\times {\mathrm{509741}}^1$

素因数の和:509754

約数の個数: 20

約数和(自身を含む): 94812012

約数和(自身を除く): 54032732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509741, 1019482, 2038964, 2548705, 4077928, 5097410, 8155856, 10194820, 20389640, 40779280]

約数ペア:

[(1, 40779280), (2, 20389640), (4, 10194820), (5, 8155856), (8, 5097410), (10, 4077928), (16, 2548705), (20, 2038964), (40, 1019482), (80, 509741)]