20892620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{21319}}^1$

素因数の和:21342

約数の個数: 36

約数和(自身を含む): 51040080

約数和(自身を除く): 30147460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 21319, 42638, 85276, 106595, 149233, 213190, 298466, 426380, 596932, 746165, 1044631, 1492330, 2089262, 2984660, 4178524, 5223155, 10446310, 20892620]

約数ペア:

[(1, 20892620), (2, 10446310), (4, 5223155), (5, 4178524), (7, 2984660), (10, 2089262), (14, 1492330), (20, 1044631), (28, 746165), (35, 596932), (49, 426380), (70, 298466), (98, 213190), (140, 149233), (196, 106595), (245, 85276), (490, 42638), (980, 21319)]