20652005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{4219}}^1$

素因数の和:4324

約数の個数: 16

約数和(自身を含む): 27345600

約数和(自身を除く): 6693595

約数列:

[1, 5, 11, 55, 89, 445, 979, 4219, 4895, 21095, 46409, 232045, 375491, 1877455, 4130401, 20652005]

約数ペア:

[(1, 20652005), (5, 4130401), (11, 1877455), (55, 375491), (89, 232045), (445, 46409), (979, 21095), (4219, 4895)]