210999740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1507141}}^1$

素因数の和:1507157

約数の個数: 24

約数和(自身を含む): 506399712

約数和(自身を除く): 295399972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1507141, 3014282, 6028564, 7535705, 10549987, 15071410, 21099974, 30142820, 42199948, 52749935, 105499870, 210999740]

約数ペア:

[(1, 210999740), (2, 105499870), (4, 52749935), (5, 42199948), (7, 30142820), (10, 21099974), (14, 15071410), (20, 10549987), (28, 7535705), (35, 6028564), (70, 3014282), (140, 1507141)]