20216120

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{2207}}^1$

素因数の和:2447

約数の個数: 32

約数和(自身を含む): 45705600

約数和(自身を除く): 25489480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2207, 2290, 4414, 4580, 8828, 9160, 11035, 17656, 22070, 44140, 88280, 505403, 1010806, 2021612, 2527015, 4043224, 5054030, 10108060, 20216120]

約数ペア:

[(1, 20216120), (2, 10108060), (4, 5054030), (5, 4043224), (8, 2527015), (10, 2021612), (20, 1010806), (40, 505403), (229, 88280), (458, 44140), (916, 22070), (1145, 17656), (1832, 11035), (2207, 9160), (2290, 8828), (4414, 4580)]