221488340

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{27617}}^1$

素因数の和:28027

約数の個数: 24

約数和(自身を含む): 466302312

約数和(自身を除く): 244813972

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 27617, 55234, 110468, 138085, 276170, 552340, 11074417, 22148834, 44297668, 55372085, 110744170, 221488340]

約数ペア:

[(1, 221488340), (2, 110744170), (4, 55372085), (5, 44297668), (10, 22148834), (20, 11074417), (401, 552340), (802, 276170), (1604, 138085), (2005, 110468), (4010, 55234), (8020, 27617)]