20112200

素因数分解:

$2^3\times 5^2\times {\mathrm{227}}^1\times {\mathrm{443}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 47072880

約数和(自身を除く): 26960680

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 227, 443, 454, 886, 908, 1135, 1772, 1816, 2215, 2270, 3544, 4430, 4540, 5675, 8860, 9080, 11075, 11350, 17720, 22150, 22700, 44300, 45400, 88600, 100561, 201122, 402244, 502805, 804488, 1005610, 2011220, 2514025, 4022440, 5028050, 10056100, 20112200]

約数ペア:

[(1, 20112200), (2, 10056100), (4, 5028050), (5, 4022440), (8, 2514025), (10, 2011220), (20, 1005610), (25, 804488), (40, 502805), (50, 402244), (100, 201122), (200, 100561), (227, 88600), (443, 45400), (454, 44300), (886, 22700), (908, 22150), (1135, 17720), (1772, 11350), (1816, 11075), (2215, 9080), (2270, 8860), (3544, 5675), (4430, 4540)]