20173888735

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{575821}}^1$

素因数の和:575864

約数の個数: 48

約数和(自身を含む): 33084428832

約数和(自身を除く): 12910540097

約数列:

[1, 5, 7, 11, 13, 35, 49, 55, 65, 77, 91, 143, 245, 385, 455, 539, 637, 715, 1001, 2695, 3185, 5005, 7007, 35035, 575821, 2879105, 4030747, 6334031, 7485673, 20153735, 28215229, 31670155, 37428365, 44338217, 52399711, 82342403, 141076145, 221691085, 261998555, 310367519, 366797977, 411712015, 576396821, 1551837595, 1833989885, 2881984105, 4034777747, 20173888735]

約数ペア:

[(1, 20173888735), (5, 4034777747), (7, 2881984105), (11, 1833989885), (13, 1551837595), (35, 576396821), (49, 411712015), (55, 366797977), (65, 310367519), (77, 261998555), (91, 221691085), (143, 141076145), (245, 82342403), (385, 52399711), (455, 44338217), (539, 37428365), (637, 31670155), (715, 28215229), (1001, 20153735), (2695, 7485673), (3185, 6334031), (5005, 4030747), (7007, 2879105), (35035, 575821)]