28786570

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{487}}^1$

素因数の和:774

約数の個数: 32

約数和(自身を含む): 54390528

約数和(自身を除く): 25603958

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 257, 487, 514, 974, 1285, 2435, 2570, 4870, 5911, 11201, 11822, 22402, 29555, 56005, 59110, 112010, 125159, 250318, 625795, 1251590, 2878657, 5757314, 14393285, 28786570]

約数ペア:

[(1, 28786570), (2, 14393285), (5, 5757314), (10, 2878657), (23, 1251590), (46, 625795), (115, 250318), (230, 125159), (257, 112010), (487, 59110), (514, 56005), (974, 29555), (1285, 22402), (2435, 11822), (2570, 11201), (4870, 5911)]