20154200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9161}}^1$

素因数の和:9188

約数の個数: 48

約数和(自身を含む): 51123960

約数和(自身を除く): 30969760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 9161, 18322, 36644, 45805, 73288, 91610, 100771, 183220, 201542, 229025, 366440, 403084, 458050, 503855, 806168, 916100, 1007710, 1832200, 2015420, 2519275, 4030840, 5038550, 10077100, 20154200]

約数ペア:

[(1, 20154200), (2, 10077100), (4, 5038550), (5, 4030840), (8, 2519275), (10, 2015420), (11, 1832200), (20, 1007710), (22, 916100), (25, 806168), (40, 503855), (44, 458050), (50, 403084), (55, 366440), (88, 229025), (100, 201542), (110, 183220), (200, 100771), (220, 91610), (275, 73288), (440, 45805), (550, 36644), (1100, 18322), (2200, 9161)]