28140110

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{21481}}^1$

素因数の和:21619

約数の個数: 16

約数和(自身を含む): 51041232

約数和(自身を除く): 22901122

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 21481, 42962, 107405, 214810, 2814011, 5628022, 14070055, 28140110]

約数ペア:

[(1, 28140110), (2, 14070055), (5, 5628022), (10, 2814011), (131, 214810), (262, 107405), (655, 42962), (1310, 21481)]