28641392

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{137699}}^1$

素因数の和:137720

約数の個数: 20

約数和(自身を含む): 59761800

約数和(自身を除く): 31120408

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 137699, 275398, 550796, 1101592, 1790087, 2203184, 3580174, 7160348, 14320696, 28641392]

約数ペア:

[(1, 28641392), (2, 14320696), (4, 7160348), (8, 3580174), (13, 2203184), (16, 1790087), (26, 1101592), (52, 550796), (104, 275398), (208, 137699)]