28890992

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{138899}}^1$

素因数の和:138920

約数の個数: 20

約数和(自身を含む): 60282600

約数和(自身を除く): 31391608

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 138899, 277798, 555596, 1111192, 1805687, 2222384, 3611374, 7222748, 14445496, 28890992]

約数ペア:

[(1, 28890992), (2, 14445496), (4, 7222748), (8, 3611374), (13, 2222384), (16, 1805687), (26, 1111192), (52, 555596), (104, 277798), (208, 138899)]