2013404420

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{205031}}^1$

素因数の和:205531

約数の個数: 24

約数和(自身を含む): 4236781248

約数和(自身を除く): 2223376828

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 205031, 410062, 820124, 1025155, 2050310, 4100620, 100670221, 201340442, 402680884, 503351105, 1006702210, 2013404420]

約数ペア:

[(1, 2013404420), (2, 1006702210), (4, 503351105), (5, 402680884), (10, 201340442), (20, 100670221), (491, 4100620), (982, 2050310), (1964, 1025155), (2455, 820124), (4910, 410062), (9820, 205031)]