28006490

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{21379}}^1$

素因数の和:21517

約数の個数: 16

約数和(自身を含む): 50798880

約数和(自身を除く): 22792390

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 21379, 42758, 106895, 213790, 2800649, 5601298, 14003245, 28006490]

約数ペア:

[(1, 28006490), (2, 14003245), (5, 5601298), (10, 2800649), (131, 213790), (262, 106895), (655, 42758), (1310, 21379)]