20450464

素因数分解:

$2^5\times {\mathrm{641}}^1\times {\mathrm{997}}^1$

素因数の和:1648

約数の個数: 24

約数和(自身を含む): 40365108

約数和(自身を除く): 19914644

約数列:

[1, 2, 4, 8, 16, 32, 641, 997, 1282, 1994, 2564, 3988, 5128, 7976, 10256, 15952, 20512, 31904, 639077, 1278154, 2556308, 5112616, 10225232, 20450464]

約数ペア:

[(1, 20450464), (2, 10225232), (4, 5112616), (8, 2556308), (16, 1278154), (32, 639077), (641, 31904), (997, 20512), (1282, 15952), (1994, 10256), (2564, 7976), (3988, 5128)]