28399210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{405703}}^1$

素因数の和:405717

約数の個数: 16

約数和(自身を含む): 58421376

約数和(自身を除く): 30022166

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 405703, 811406, 2028515, 2839921, 4057030, 5679842, 14199605, 28399210]

約数ペア:

[(1, 28399210), (2, 14199605), (5, 5679842), (7, 4057030), (10, 2839921), (14, 2028515), (35, 811406), (70, 405703)]