20194360

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1259}}^1$

素因数の和:1671

約数の個数: 32

約数和(自身を含む): 45586800

約数和(自身を除く): 25392440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1259, 1604, 2005, 2518, 3208, 4010, 5036, 6295, 8020, 10072, 12590, 16040, 25180, 50360, 504859, 1009718, 2019436, 2524295, 4038872, 5048590, 10097180, 20194360]

約数ペア:

[(1, 20194360), (2, 10097180), (4, 5048590), (5, 4038872), (8, 2524295), (10, 2019436), (20, 1009718), (40, 504859), (401, 50360), (802, 25180), (1259, 16040), (1604, 12590), (2005, 10072), (2518, 8020), (3208, 6295), (4010, 5036)]