20476280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{269}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 50738400

約数和(自身を除く): 30262120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 173, 220, 269, 346, 440, 538, 692, 865, 1076, 1345, 1384, 1730, 1903, 2152, 2690, 2959, 3460, 3806, 5380, 5918, 6920, 7612, 9515, 10760, 11836, 14795, 15224, 19030, 23672, 29590, 38060, 46537, 59180, 76120, 93074, 118360, 186148, 232685, 372296, 465370, 511907, 930740, 1023814, 1861480, 2047628, 2559535, 4095256, 5119070, 10238140, 20476280]

約数ペア:

[(1, 20476280), (2, 10238140), (4, 5119070), (5, 4095256), (8, 2559535), (10, 2047628), (11, 1861480), (20, 1023814), (22, 930740), (40, 511907), (44, 465370), (55, 372296), (88, 232685), (110, 186148), (173, 118360), (220, 93074), (269, 76120), (346, 59180), (440, 46537), (538, 38060), (692, 29590), (865, 23672), (1076, 19030), (1345, 15224), (1384, 14795), (1730, 11836), (1903, 10760), (2152, 9515), (2690, 7612), (2959, 6920), (3460, 5918), (3806, 5380)]