28720495

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{2029}}^1$

素因数の和:2202

約数の個数: 16

約数和(自身を含む): 36540000

約数和(自身を除く): 7819505

約数列:

[1, 5, 19, 95, 149, 745, 2029, 2831, 10145, 14155, 38551, 192755, 302321, 1511605, 5744099, 28720495]

約数ペア:

[(1, 28720495), (5, 5744099), (19, 1511605), (95, 302321), (149, 192755), (745, 38551), (2029, 14155), (2831, 10145)]