2028080

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:365

約数の個数: 40

約数和(自身を含む): 4780944

約数和(自身を除く): 2752864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 251, 404, 502, 505, 808, 1004, 1010, 1255, 1616, 2008, 2020, 2510, 4016, 4040, 5020, 8080, 10040, 20080, 25351, 50702, 101404, 126755, 202808, 253510, 405616, 507020, 1014040, 2028080]

約数ペア:

[(1, 2028080), (2, 1014040), (4, 507020), (5, 405616), (8, 253510), (10, 202808), (16, 126755), (20, 101404), (40, 50702), (80, 25351), (101, 20080), (202, 10040), (251, 8080), (404, 5020), (502, 4040), (505, 4016), (808, 2510), (1004, 2020), (1010, 2008), (1255, 1616)]