18188080

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2251}}^1$

素因数の和:2365

約数の個数: 40

約数和(自身を含む): 42724944

約数和(自身を除く): 24536864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 2251, 4040, 4502, 8080, 9004, 11255, 18008, 22510, 36016, 45020, 90040, 180080, 227351, 454702, 909404, 1136755, 1818808, 2273510, 3637616, 4547020, 9094040, 18188080]

約数ペア:

[(1, 18188080), (2, 9094040), (4, 4547020), (5, 3637616), (8, 2273510), (10, 1818808), (16, 1136755), (20, 909404), (40, 454702), (80, 227351), (101, 180080), (202, 90040), (404, 45020), (505, 36016), (808, 22510), (1010, 18008), (1616, 11255), (2020, 9004), (2251, 8080), (4040, 4502)]