421088780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{3007777}}^1$

素因数の和:3007793

約数の個数: 24

約数和(自身を含む): 1010613408

約数和(自身を除く): 589524628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3007777, 6015554, 12031108, 15038885, 21054439, 30077770, 42108878, 60155540, 84217756, 105272195, 210544390, 421088780]

約数ペア:

[(1, 421088780), (2, 210544390), (4, 105272195), (5, 84217756), (7, 60155540), (10, 42108878), (14, 30077770), (20, 21054439), (28, 15038885), (35, 12031108), (70, 6015554), (140, 3007777)]