20780060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{148429}}^1$

素因数の和:148445

約数の個数: 24

約数和(自身を含む): 49872480

約数和(自身を除く): 29092420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 148429, 296858, 593716, 742145, 1039003, 1484290, 2078006, 2968580, 4156012, 5195015, 10390030, 20780060]

約数ペア:

[(1, 20780060), (2, 10390030), (4, 5195015), (5, 4156012), (7, 2968580), (10, 2078006), (14, 1484290), (20, 1039003), (28, 742145), (35, 593716), (70, 296858), (140, 148429)]