2019418900

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{226901}}^1$

素因数の和:227004

約数の個数: 36

約数和(自身を含む): 4431396060

約数和(自身を除く): 2411977160

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 1780, 2225, 4450, 8900, 226901, 453802, 907604, 1134505, 2269010, 4538020, 5672525, 11345050, 20194189, 22690100, 40388378, 80776756, 100970945, 201941890, 403883780, 504854725, 1009709450, 2019418900]

約数ペア:

[(1, 2019418900), (2, 1009709450), (4, 504854725), (5, 403883780), (10, 201941890), (20, 100970945), (25, 80776756), (50, 40388378), (89, 22690100), (100, 20194189), (178, 11345050), (356, 5672525), (445, 4538020), (890, 2269010), (1780, 1134505), (2225, 907604), (4450, 453802), (8900, 226901)]