28387030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{405529}}^1$

素因数の和:405543

約数の個数: 16

約数和(自身を含む): 58396320

約数和(自身を除く): 30009290

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 405529, 811058, 2027645, 2838703, 4055290, 5677406, 14193515, 28387030]

約数ペア:

[(1, 28387030), (2, 14193515), (5, 5677406), (7, 4055290), (10, 2838703), (14, 2027645), (35, 811058), (70, 405529)]