15639820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{15959}}^1$

素因数の和:15982

約数の個数: 36

約数和(自身を含む): 38208240

約数和(自身を除く): 22568420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 15959, 31918, 63836, 79795, 111713, 159590, 223426, 319180, 446852, 558565, 781991, 1117130, 1563982, 2234260, 3127964, 3909955, 7819910, 15639820]

約数ペア:

[(1, 15639820), (2, 7819910), (4, 3909955), (5, 3127964), (7, 2234260), (10, 1563982), (14, 1117130), (20, 781991), (28, 558565), (35, 446852), (49, 319180), (70, 223426), (98, 159590), (140, 111713), (196, 79795), (245, 63836), (490, 31918), (980, 15959)]