200023580

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{20369}}^1$

素因数の和:20869

約数の個数: 24

約数和(自身を含む): 420925680

約数和(自身を除く): 220902100

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 20369, 40738, 81476, 101845, 203690, 407380, 10001179, 20002358, 40004716, 50005895, 100011790, 200023580]

約数ペア:

[(1, 200023580), (2, 100011790), (4, 50005895), (5, 40004716), (10, 20002358), (20, 10001179), (491, 407380), (982, 203690), (1964, 101845), (2455, 81476), (4910, 40738), (9820, 20369)]