40541960

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{3259}}^1$

素因数の和:3581

約数の個数: 32

約数和(自身を含む): 91540800

約数和(自身を除く): 50998840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 3259, 6220, 6518, 12440, 13036, 16295, 26072, 32590, 65180, 130360, 1013549, 2027098, 4054196, 5067745, 8108392, 10135490, 20270980, 40541960]

約数ペア:

[(1, 40541960), (2, 20270980), (4, 10135490), (5, 8108392), (8, 5067745), (10, 4054196), (20, 2027098), (40, 1013549), (311, 130360), (622, 65180), (1244, 32590), (1555, 26072), (2488, 16295), (3110, 13036), (3259, 12440), (6220, 6518)]