209780450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{381419}}^1$

素因数の和:381442

約数の個数: 24

約数和(自身を含む): 425664720

約数和(自身を除く): 215884270

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550, 381419, 762838, 1907095, 3814190, 4195609, 8391218, 9535475, 19070950, 20978045, 41956090, 104890225, 209780450]

約数ペア:

[(1, 209780450), (2, 104890225), (5, 41956090), (10, 20978045), (11, 19070950), (22, 9535475), (25, 8391218), (50, 4195609), (55, 3814190), (110, 1907095), (275, 762838), (550, 381419)]