20596660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{21017}}^1$

素因数の和:21040

約数の個数: 36

約数和(自身を含む): 50317092

約数和(自身を除く): 29720432

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 21017, 42034, 84068, 105085, 147119, 210170, 294238, 420340, 588476, 735595, 1029833, 1471190, 2059666, 2942380, 4119332, 5149165, 10298330, 20596660]

約数ペア:

[(1, 20596660), (2, 10298330), (4, 5149165), (5, 4119332), (7, 2942380), (10, 2059666), (14, 1471190), (20, 1029833), (28, 735595), (35, 588476), (49, 420340), (70, 294238), (98, 210170), (140, 147119), (196, 105085), (245, 84068), (490, 42034), (980, 21017)]