218163440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{247913}}^1$

素因数の和:247937

約数の個数: 40

約数和(自身を含む): 553344048

約数和(自身を除く): 335180608

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 247913, 495826, 991652, 1239565, 1983304, 2479130, 2727043, 3966608, 4958260, 5454086, 9916520, 10908172, 13635215, 19833040, 21816344, 27270430, 43632688, 54540860, 109081720, 218163440]

約数ペア:

[(1, 218163440), (2, 109081720), (4, 54540860), (5, 43632688), (8, 27270430), (10, 21816344), (11, 19833040), (16, 13635215), (20, 10908172), (22, 9916520), (40, 5454086), (44, 4958260), (55, 3966608), (80, 2727043), (88, 2479130), (110, 1983304), (176, 1239565), (220, 991652), (440, 495826), (880, 247913)]