204290520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{243203}}^1$

素因数の和:243224

約数の個数: 64

約数和(自身を含む): 700427520

約数和(自身を除く): 496137000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 243203, 486406, 729609, 972812, 1216015, 1459218, 1702421, 1945624, 2432030, 2918436, 3404842, 3648045, 4864060, 5107263, 5836872, 6809684, 7296090, 8512105, 9728120, 10214526, 13619368, 14592180, 17024210, 20429052, 25536315, 29184360, 34048420, 40858104, 51072630, 68096840, 102145260, 204290520]

約数ペア:

[(1, 204290520), (2, 102145260), (3, 68096840), (4, 51072630), (5, 40858104), (6, 34048420), (7, 29184360), (8, 25536315), (10, 20429052), (12, 17024210), (14, 14592180), (15, 13619368), (20, 10214526), (21, 9728120), (24, 8512105), (28, 7296090), (30, 6809684), (35, 5836872), (40, 5107263), (42, 4864060), (56, 3648045), (60, 3404842), (70, 2918436), (84, 2432030), (105, 1945624), (120, 1702421), (140, 1459218), (168, 1216015), (210, 972812), (280, 729609), (420, 486406), (840, 243203)]