638533424

素因数分解:

$2^4\times {\mathrm{331}}^1\times {\mathrm{120569}}^1$

素因数の和:120908

約数の個数: 20

約数和(自身を含む): 1240906440

約数和(自身を除く): 602373016

約数列:

[1, 2, 4, 8, 16, 331, 662, 1324, 2648, 5296, 120569, 241138, 482276, 964552, 1929104, 39908339, 79816678, 159633356, 319266712, 638533424]

約数ペア:

[(1, 638533424), (2, 319266712), (4, 159633356), (8, 79816678), (16, 39908339), (331, 1929104), (662, 964552), (1324, 482276), (2648, 241138), (5296, 120569)]