289091920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{2029}}^1$

素因数の和:2192

約数の個数: 80

約数和(自身を含む): 729484560

約数和(自身を除く): 440392640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 137, 208, 260, 274, 520, 548, 685, 1040, 1096, 1370, 1781, 2029, 2192, 2740, 3562, 4058, 5480, 7124, 8116, 8905, 10145, 10960, 14248, 16232, 17810, 20290, 26377, 28496, 32464, 35620, 40580, 52754, 71240, 81160, 105508, 131885, 142480, 162320, 211016, 263770, 277973, 422032, 527540, 555946, 1055080, 1111892, 1389865, 2110160, 2223784, 2779730, 3613649, 4447568, 5559460, 7227298, 11118920, 14454596, 18068245, 22237840, 28909192, 36136490, 57818384, 72272980, 144545960, 289091920]

約数ペア:

[(1, 289091920), (2, 144545960), (4, 72272980), (5, 57818384), (8, 36136490), (10, 28909192), (13, 22237840), (16, 18068245), (20, 14454596), (26, 11118920), (40, 7227298), (52, 5559460), (65, 4447568), (80, 3613649), (104, 2779730), (130, 2223784), (137, 2110160), (208, 1389865), (260, 1111892), (274, 1055080), (520, 555946), (548, 527540), (685, 422032), (1040, 277973), (1096, 263770), (1370, 211016), (1781, 162320), (2029, 142480), (2192, 131885), (2740, 105508), (3562, 81160), (4058, 71240), (5480, 52754), (7124, 40580), (8116, 35620), (8905, 32464), (10145, 28496), (10960, 26377), (14248, 20290), (16232, 17810)]