64872780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{154459}}^1$

素因数の和:154478

約数の個数: 48

約数和(自身を含む): 207594240

約数和(自身を除く): 142721460

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, 154459, 308918, 463377, 617836, 772295, 926754, 1081213, 1544590, 1853508, 2162426, 2316885, 3089180, 3243639, 4324852, 4633770, 5406065, 6487278, 9267540, 10812130, 12974556, 16218195, 21624260, 32436390, 64872780]

約数ペア:

[(1, 64872780), (2, 32436390), (3, 21624260), (4, 16218195), (5, 12974556), (6, 10812130), (7, 9267540), (10, 6487278), (12, 5406065), (14, 4633770), (15, 4324852), (20, 3243639), (21, 3089180), (28, 2316885), (30, 2162426), (35, 1853508), (42, 1544590), (60, 1081213), (70, 926754), (84, 772295), (105, 617836), (140, 463377), (210, 308918), (420, 154459)]