159862005

素因数分解:

$3^4\times 5^1\times {\mathrm{394721}}^1$

素因数の和:394738

約数の個数: 20

約数和(自身を含む): 286568172

約数和(自身を除く): 126706167

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 394721, 1184163, 1973605, 3552489, 5920815, 10657467, 17762445, 31972401, 53287335, 159862005]

約数ペア:

[(1, 159862005), (3, 53287335), (5, 31972401), (9, 17762445), (15, 10657467), (27, 5920815), (45, 3552489), (81, 1973605), (135, 1184163), (405, 394721)]