15278185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 21168000

約数和(自身を除く): 5889815

約数列:

[1, 5, 13, 19, 65, 89, 95, 139, 247, 445, 695, 1157, 1235, 1691, 1807, 2641, 5785, 8455, 9035, 12371, 13205, 21983, 34333, 61855, 109915, 160823, 171665, 235049, 804115, 1175245, 3055637, 15278185]

約数ペア:

[(1, 15278185), (5, 3055637), (13, 1175245), (19, 804115), (65, 235049), (89, 171665), (95, 160823), (139, 109915), (247, 61855), (445, 34333), (695, 21983), (1157, 13205), (1235, 12371), (1691, 9035), (1807, 8455), (2641, 5785)]