28478380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{203417}}^1$

素因数の和:203433

約数の個数: 24

約数和(自身を含む): 68348448

約数和(自身を除く): 39870068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 203417, 406834, 813668, 1017085, 1423919, 2034170, 2847838, 4068340, 5695676, 7119595, 14239190, 28478380]

約数ペア:

[(1, 28478380), (2, 14239190), (4, 7119595), (5, 5695676), (7, 4068340), (10, 2847838), (14, 2034170), (20, 1423919), (28, 1017085), (35, 813668), (70, 406834), (140, 203417)]