28798420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{205703}}^1$

素因数の和:205719

約数の個数: 24

約数和(自身を含む): 69116544

約数和(自身を除く): 40318124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 205703, 411406, 822812, 1028515, 1439921, 2057030, 2879842, 4114060, 5759684, 7199605, 14399210, 28798420]

約数ペア:

[(1, 28798420), (2, 14399210), (4, 7199605), (5, 5759684), (7, 4114060), (10, 2879842), (14, 2057030), (20, 1439921), (28, 1028515), (35, 822812), (70, 411406), (140, 205703)]