20874220

素因数分解:

$2^2\times 5^1\times {\mathrm{829}}^1\times {\mathrm{1259}}^1$

素因数の和:2097

約数の個数: 24

約数和(自身を含む): 43923600

約数和(自身を除く): 23049380

約数列:

[1, 2, 4, 5, 10, 20, 829, 1259, 1658, 2518, 3316, 4145, 5036, 6295, 8290, 12590, 16580, 25180, 1043711, 2087422, 4174844, 5218555, 10437110, 20874220]

約数ペア:

[(1, 20874220), (2, 10437110), (4, 5218555), (5, 4174844), (10, 2087422), (20, 1043711), (829, 25180), (1259, 16580), (1658, 12590), (2518, 8290), (3316, 6295), (4145, 5036)]