20408976002

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1\times {\mathrm{687773}}^1$

素因数の和:688213

約数の個数: 16

約数和(自身を含む): 31519306872

約数和(自身を除く): 11110330870

約数列:

[1, 2, 37, 74, 401, 802, 14837, 29674, 687773, 1375546, 25447601, 50895202, 275796973, 551593946, 10204488001, 20408976002]

約数ペア:

[(1, 20408976002), (2, 10204488001), (37, 551593946), (74, 275796973), (401, 50895202), (802, 25447601), (14837, 1375546), (29674, 687773)]