9681380

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4441}}^1$

素因数の和:4559

約数の個数: 24

約数和(自身を含む): 20522040

約数和(自身を除く): 10840660

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 4441, 8882, 17764, 22205, 44410, 88820, 484069, 968138, 1936276, 2420345, 4840690, 9681380]

約数ペア:

[(1, 9681380), (2, 4840690), (4, 2420345), (5, 1936276), (10, 968138), (20, 484069), (109, 88820), (218, 44410), (436, 22205), (545, 17764), (1090, 8882), (2180, 4441)]