218655680

素因数分解:

$2^6\times 5^1\times {\mathrm{683299}}^1$

素因数の和:683316

約数の個数: 28

約数和(自身を含む): 520674600

約数和(自身を除く): 302018920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 683299, 1366598, 2733196, 3416495, 5466392, 6832990, 10932784, 13665980, 21865568, 27331960, 43731136, 54663920, 109327840, 218655680]

約数ペア:

[(1, 218655680), (2, 109327840), (4, 54663920), (5, 43731136), (8, 27331960), (10, 21865568), (16, 13665980), (20, 10932784), (32, 6832990), (40, 5466392), (64, 3416495), (80, 2733196), (160, 1366598), (320, 683299)]