128994640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{94849}}^1$

素因数の和:94879

約数の個数: 40

約数和(自身を含む): 317557800

約数和(自身を除く): 188563160

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 94849, 189698, 379396, 474245, 758792, 948490, 1517584, 1612433, 1896980, 3224866, 3793960, 6449732, 7587920, 8062165, 12899464, 16124330, 25798928, 32248660, 64497320, 128994640]

約数ペア:

[(1, 128994640), (2, 64497320), (4, 32248660), (5, 25798928), (8, 16124330), (10, 12899464), (16, 8062165), (17, 7587920), (20, 6449732), (34, 3793960), (40, 3224866), (68, 1896980), (80, 1612433), (85, 1517584), (136, 948490), (170, 758792), (272, 474245), (340, 379396), (680, 189698), (1360, 94849)]