18841040

素因数分解:

$2^4\times 5^1\times {\mathrm{235513}}^1$

素因数の和:235526

約数の個数: 20

約数和(自身を含む): 43805604

約数和(自身を除く): 24964564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235513, 471026, 942052, 1177565, 1884104, 2355130, 3768208, 4710260, 9420520, 18841040]

約数ペア:

[(1, 18841040), (2, 9420520), (4, 4710260), (5, 3768208), (8, 2355130), (10, 1884104), (16, 1177565), (20, 942052), (40, 471026), (80, 235513)]