20668150

素因数分解:

$2^1\times 5^2\times {\mathrm{353}}^1\times {\mathrm{1171}}^1$

素因数の和:1536

約数の個数: 24

約数和(自身を含む): 38584584

約数和(自身を除く): 17916434

約数列:

[1, 2, 5, 10, 25, 50, 353, 706, 1171, 1765, 2342, 3530, 5855, 8825, 11710, 17650, 29275, 58550, 413363, 826726, 2066815, 4133630, 10334075, 20668150]

約数ペア:

[(1, 20668150), (2, 10334075), (5, 4133630), (10, 2066815), (25, 826726), (50, 413363), (353, 58550), (706, 29275), (1171, 17650), (1765, 11710), (2342, 8825), (3530, 5855)]