2005021640

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{468463}}^1$

素因数の和:468581

約数の個数: 32

約数和(自身を含む): 4553470080

約数和(自身を除く): 2548448440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 468463, 936926, 1873852, 2342315, 3747704, 4684630, 9369260, 18738520, 50125541, 100251082, 200502164, 250627705, 401004328, 501255410, 1002510820, 2005021640]

約数ペア:

[(1, 2005021640), (2, 1002510820), (4, 501255410), (5, 401004328), (8, 250627705), (10, 200502164), (20, 100251082), (40, 50125541), (107, 18738520), (214, 9369260), (428, 4684630), (535, 3747704), (856, 2342315), (1070, 1873852), (2140, 936926), (4280, 468463)]