2218220

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{563}}^1$

素因数の和:769

約数の個数: 24

約数和(自身を含む): 4690224

約数和(自身を除く): 2472004

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 563, 788, 985, 1126, 1970, 2252, 2815, 3940, 5630, 11260, 110911, 221822, 443644, 554555, 1109110, 2218220]

約数ペア:

[(1, 2218220), (2, 1109110), (4, 554555), (5, 443644), (10, 221822), (20, 110911), (197, 11260), (394, 5630), (563, 3940), (788, 2815), (985, 2252), (1126, 1970)]