209976568

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{26539}}^1$

素因数の和:26611

約数の個数: 32

約数和(自身を含む): 420393600

約数和(自身を除く): 210417032

約数列:

[1, 2, 4, 8, 23, 43, 46, 86, 92, 172, 184, 344, 989, 1978, 3956, 7912, 26539, 53078, 106156, 212312, 610397, 1141177, 1220794, 2282354, 2441588, 4564708, 4883176, 9129416, 26247071, 52494142, 104988284, 209976568]

約数ペア:

[(1, 209976568), (2, 104988284), (4, 52494142), (8, 26247071), (23, 9129416), (43, 4883176), (46, 4564708), (86, 2441588), (92, 2282354), (172, 1220794), (184, 1141177), (344, 610397), (989, 212312), (1978, 106156), (3956, 53078), (7912, 26539)]