2878820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{20563}}^1$

素因数の和:20579

約数の個数: 24

約数和(自身を含む): 6909504

約数和(自身を除く): 4030684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 20563, 41126, 82252, 102815, 143941, 205630, 287882, 411260, 575764, 719705, 1439410, 2878820]

約数ペア:

[(1, 2878820), (2, 1439410), (4, 719705), (5, 575764), (7, 411260), (10, 287882), (14, 205630), (20, 143941), (28, 102815), (35, 82252), (70, 41126), (140, 20563)]