209516920

素因数分解:

$2^3\times 5^1\times {\mathrm{5237923}}^1$

素因数の和:5237934

約数の個数: 16

約数和(自身を含む): 471413160

約数和(自身を除く): 261896240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5237923, 10475846, 20951692, 26189615, 41903384, 52379230, 104758460, 209516920]

約数ペア:

[(1, 209516920), (2, 104758460), (4, 52379230), (5, 41903384), (8, 26189615), (10, 20951692), (20, 10475846), (40, 5237923)]