220159985

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^2\times {\mathrm{643}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 279073536

約数和(自身を除く): 58913551

約数列:

[1, 5, 31, 47, 155, 235, 643, 1457, 2209, 3215, 7285, 11045, 19933, 30221, 68479, 99665, 151105, 342395, 936851, 1420387, 4684255, 7101935, 44031997, 220159985]

約数ペア:

[(1, 220159985), (5, 44031997), (31, 7101935), (47, 4684255), (155, 1420387), (235, 936851), (643, 342395), (1457, 151105), (2209, 99665), (3215, 68479), (7285, 30221), (11045, 19933)]