100590920

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{3911}}^1$

素因数の和:4565

約数の個数: 32

約数和(自身を含む): 226739520

約数和(自身を除く): 126148600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 3911, 5144, 6430, 7822, 12860, 15644, 19555, 25720, 31288, 39110, 78220, 156440, 2514773, 5029546, 10059092, 12573865, 20118184, 25147730, 50295460, 100590920]

約数ペア:

[(1, 100590920), (2, 50295460), (4, 25147730), (5, 20118184), (8, 12573865), (10, 10059092), (20, 5029546), (40, 2514773), (643, 156440), (1286, 78220), (2572, 39110), (3215, 31288), (3911, 25720), (5144, 19555), (6430, 15644), (7822, 12860)]