390372780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{929459}}^1$

素因数の和:929478

約数の個数: 48

約数和(自身を含む): 1249194240

約数和(自身を除く): 858821460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 929459, 1858918, 2788377, 3717836, 4647295, 5576754, 6506213, 9294590, 11153508, 13012426, 13941885, 18589180, 19518639, 26024852, 27883770, 32531065, 39037278, 55767540, 65062130, 78074556, 97593195, 130124260, 195186390, 390372780]

約数ペア:

[(1, 390372780), (2, 195186390), (3, 130124260), (4, 97593195), (5, 78074556), (6, 65062130), (7, 55767540), (10, 39037278), (12, 32531065), (14, 27883770), (15, 26024852), (20, 19518639), (21, 18589180), (28, 13941885), (30, 13012426), (35, 11153508), (42, 9294590), (60, 6506213), (70, 5576754), (84, 4647295), (105, 3717836), (140, 2788377), (210, 1858918), (420, 929459)]