28639745905

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{4999}}^1\times {\mathrm{39511}}^1$

素因数の和:44544

約数の個数: 16

約数和(自身を含む): 35560800000

約数和(自身を除く): 6921054095

約数列:

[1, 5, 29, 145, 4999, 24995, 39511, 144971, 197555, 724855, 1145819, 5729095, 197515489, 987577445, 5727949181, 28639745905]

約数ペア:

[(1, 28639745905), (5, 5727949181), (29, 987577445), (145, 197515489), (4999, 5729095), (24995, 1145819), (39511, 724855), (144971, 197555)]