55778380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{398417}}^1$

素因数の和:398433

約数の個数: 24

約数和(自身を含む): 133868448

約数和(自身を除く): 78090068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 398417, 796834, 1593668, 1992085, 2788919, 3984170, 5577838, 7968340, 11155676, 13944595, 27889190, 55778380]

約数ペア:

[(1, 55778380), (2, 27889190), (4, 13944595), (5, 11155676), (7, 7968340), (10, 5577838), (14, 3984170), (20, 2788919), (28, 1992085), (35, 1593668), (70, 796834), (140, 398417)]