1320828460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{72019}}^1$

素因数の和:72166

約数の個数: 48

約数和(自身を含む): 3194231040

約数和(自身を除く): 1873402580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 524, 655, 917, 1310, 1834, 2620, 3668, 4585, 9170, 18340, 72019, 144038, 288076, 360095, 504133, 720190, 1008266, 1440380, 2016532, 2520665, 5041330, 9434489, 10082660, 18868978, 37737956, 47172445, 66041423, 94344890, 132082846, 188689780, 264165692, 330207115, 660414230, 1320828460]

約数ペア:

[(1, 1320828460), (2, 660414230), (4, 330207115), (5, 264165692), (7, 188689780), (10, 132082846), (14, 94344890), (20, 66041423), (28, 47172445), (35, 37737956), (70, 18868978), (131, 10082660), (140, 9434489), (262, 5041330), (524, 2520665), (655, 2016532), (917, 1440380), (1310, 1008266), (1834, 720190), (2620, 504133), (3668, 360095), (4585, 288076), (9170, 144038), (18340, 72019)]