209961904

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{120391}}^1$

素因数の和:120508

約数の個数: 20

約数和(自身を含む): 410536720

約数和(自身を除く): 200574816

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 120391, 240782, 481564, 963128, 1926256, 13122619, 26245238, 52490476, 104980952, 209961904]

約数ペア:

[(1, 209961904), (2, 104980952), (4, 52490476), (8, 26245238), (16, 13122619), (109, 1926256), (218, 963128), (436, 481564), (872, 240782), (1744, 120391)]