16399985

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:713

約数の個数: 32

約数和(自身を含む): 24406272

約数和(自身を除く): 8006287

約数列:

[1, 5, 7, 17, 35, 43, 85, 119, 215, 301, 595, 641, 731, 1505, 3205, 3655, 4487, 5117, 10897, 22435, 25585, 27563, 54485, 76279, 137815, 192941, 381395, 468571, 964705, 2342855, 3279997, 16399985]

約数ペア:

[(1, 16399985), (5, 3279997), (7, 2342855), (17, 964705), (35, 468571), (43, 381395), (85, 192941), (119, 137815), (215, 76279), (301, 54485), (595, 27563), (641, 25585), (731, 22435), (1505, 10897), (3205, 5117), (3655, 4487)]