287156980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{6763}}^1$

素因数の和:6976

約数の個数: 48

約数和(自身を含む): 661356864

約数和(自身を除く): 374199884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 193, 220, 386, 772, 965, 1930, 2123, 3860, 4246, 6763, 8492, 10615, 13526, 21230, 27052, 33815, 42460, 67630, 74393, 135260, 148786, 297572, 371965, 743930, 1305259, 1487860, 2610518, 5221036, 6526295, 13052590, 14357849, 26105180, 28715698, 57431396, 71789245, 143578490, 287156980]

約数ペア:

[(1, 287156980), (2, 143578490), (4, 71789245), (5, 57431396), (10, 28715698), (11, 26105180), (20, 14357849), (22, 13052590), (44, 6526295), (55, 5221036), (110, 2610518), (193, 1487860), (220, 1305259), (386, 743930), (772, 371965), (965, 297572), (1930, 148786), (2123, 135260), (3860, 74393), (4246, 67630), (6763, 42460), (8492, 33815), (10615, 27052), (13526, 21230)]