840845780

素因数分解:

$2^2\times 5^1\times {\mathrm{5297}}^1\times {\mathrm{7937}}^1$

素因数の和:13243

約数の個数: 24

約数和(自身を含む): 1766332008

約数和(自身を除く): 925486228

約数列:

[1, 2, 4, 5, 10, 20, 5297, 7937, 10594, 15874, 21188, 26485, 31748, 39685, 52970, 79370, 105940, 158740, 42042289, 84084578, 168169156, 210211445, 420422890, 840845780]

約数ペア:

[(1, 840845780), (2, 420422890), (4, 210211445), (5, 168169156), (10, 84084578), (20, 42042289), (5297, 158740), (7937, 105940), (10594, 79370), (15874, 52970), (21188, 39685), (26485, 31748)]