166421680

素因数分解:

$2^4\times 5^1\times {\mathrm{2080271}}^1$

素因数の和:2080284

約数の個数: 20

約数和(自身を含む): 386930592

約数和(自身を除く): 220508912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2080271, 4160542, 8321084, 10401355, 16642168, 20802710, 33284336, 41605420, 83210840, 166421680]

約数ペア:

[(1, 166421680), (2, 83210840), (4, 41605420), (5, 33284336), (8, 20802710), (10, 16642168), (16, 10401355), (20, 8321084), (40, 4160542), (80, 2080271)]