217874060

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{22369}}^1$

素因数の和:22865

約数の個数: 24

約数和(自身を含む): 458495520

約数和(自身を除く): 240621460

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4870, 9740, 22369, 44738, 89476, 111845, 223690, 447380, 10893703, 21787406, 43574812, 54468515, 108937030, 217874060]

約数ペア:

[(1, 217874060), (2, 108937030), (4, 54468515), (5, 43574812), (10, 21787406), (20, 10893703), (487, 447380), (974, 223690), (1948, 111845), (2435, 89476), (4870, 44738), (9740, 22369)]