212981680

素因数分解:

$2^4\times 5^1\times {\mathrm{2662271}}^1$

素因数の和:2662284

約数の個数: 20

約数和(自身を含む): 495182592

約数和(自身を除く): 282200912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2662271, 5324542, 10649084, 13311355, 21298168, 26622710, 42596336, 53245420, 106490840, 212981680]

約数ペア:

[(1, 212981680), (2, 106490840), (4, 53245420), (5, 42596336), (8, 26622710), (10, 21298168), (16, 13311355), (20, 10649084), (40, 5324542), (80, 2662271)]