208051307120

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1129}}^1\times {\mathrm{8963}}^1$

素因数の和:10362

約数の個数: 80

約数和(自身を含む): 486085808160

約数和(自身を除く): 278034501040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1129, 1285, 2056, 2258, 2570, 4112, 4516, 5140, 5645, 8963, 9032, 10280, 11290, 17926, 18064, 20560, 22580, 35852, 44815, 45160, 71704, 89630, 90320, 143408, 179260, 290153, 358520, 580306, 717040, 1160612, 1450765, 2303491, 2321224, 2901530, 4606982, 4642448, 5803060, 9213964, 10119227, 11517455, 11606120, 18427928, 20238454, 23034910, 23212240, 36855856, 40476908, 46069820, 50596135, 80953816, 92139640, 101192270, 161907632, 184279280, 202384540, 404769080, 809538160, 2600641339, 5201282678, 10402565356, 13003206695, 20805130712, 26006413390, 41610261424, 52012826780, 104025653560, 208051307120]

約数ペア:

[(1, 208051307120), (2, 104025653560), (4, 52012826780), (5, 41610261424), (8, 26006413390), (10, 20805130712), (16, 13003206695), (20, 10402565356), (40, 5201282678), (80, 2600641339), (257, 809538160), (514, 404769080), (1028, 202384540), (1129, 184279280), (1285, 161907632), (2056, 101192270), (2258, 92139640), (2570, 80953816), (4112, 50596135), (4516, 46069820), (5140, 40476908), (5645, 36855856), (8963, 23212240), (9032, 23034910), (10280, 20238454), (11290, 18427928), (17926, 11606120), (18064, 11517455), (20560, 10119227), (22580, 9213964), (35852, 5803060), (44815, 4642448), (45160, 4606982), (71704, 2901530), (89630, 2321224), (90320, 2303491), (143408, 1450765), (179260, 1160612), (290153, 717040), (358520, 580306)]