19362760

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4441}}^1$

素因数の和:4561

約数の個数: 32

約数和(自身を含む): 43975800

約数和(自身を除く): 24613040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 4441, 8882, 17764, 22205, 35528, 44410, 88820, 177640, 484069, 968138, 1936276, 2420345, 3872552, 4840690, 9681380, 19362760]

約数ペア:

[(1, 19362760), (2, 9681380), (4, 4840690), (5, 3872552), (8, 2420345), (10, 1936276), (20, 968138), (40, 484069), (109, 177640), (218, 88820), (436, 44410), (545, 35528), (872, 22205), (1090, 17764), (2180, 8882), (4360, 4441)]