2011220

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{443}}^1$

素因数の和:679

約数の個数: 24

約数和(自身を含む): 4251744

約数和(自身を除く): 2240524

約数列:

[1, 2, 4, 5, 10, 20, 227, 443, 454, 886, 908, 1135, 1772, 2215, 2270, 4430, 4540, 8860, 100561, 201122, 402244, 502805, 1005610, 2011220]

約数ペア:

[(1, 2011220), (2, 1005610), (4, 502805), (5, 402244), (10, 201122), (20, 100561), (227, 8860), (443, 4540), (454, 4430), (886, 2270), (908, 2215), (1135, 1772)]