788404940

素因数分解:

$2^2\times 5^1\times {\mathrm{39420247}}^1$

素因数の和:39420256

約数の個数: 12

約数和(自身を含む): 1655650416

約数和(自身を除く): 867245476

約数列:

[1, 2, 4, 5, 10, 20, 39420247, 78840494, 157680988, 197101235, 394202470, 788404940]

約数ペア:

[(1, 788404940), (2, 394202470), (4, 197101235), (5, 157680988), (10, 78840494), (20, 39420247)]