28758380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{205417}}^1$

素因数の和:205433

約数の個数: 24

約数和(自身を含む): 69020448

約数和(自身を除く): 40262068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 205417, 410834, 821668, 1027085, 1437919, 2054170, 2875838, 4108340, 5751676, 7189595, 14379190, 28758380]

約数ペア:

[(1, 28758380), (2, 14379190), (4, 7189595), (5, 5751676), (7, 4108340), (10, 2875838), (14, 2054170), (20, 1437919), (28, 1027085), (35, 821668), (70, 410834), (140, 205417)]