15780345

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1097}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 29092608

約数和(自身を除く): 13312263

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 137, 411, 685, 959, 1097, 2055, 2877, 3291, 4795, 5485, 7679, 14385, 16455, 23037, 38395, 115185, 150289, 450867, 751445, 1052023, 2254335, 3156069, 5260115, 15780345]

約数ペア:

[(1, 15780345), (3, 5260115), (5, 3156069), (7, 2254335), (15, 1052023), (21, 751445), (35, 450867), (105, 150289), (137, 115185), (411, 38395), (685, 23037), (959, 16455), (1097, 14385), (2055, 7679), (2877, 5485), (3291, 4795)]