420840272

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{1384343}}^1$

素因数の和:1384370

約数の個数: 20

約数和(自身を含む): 858293280

約数和(自身を除く): 437453008

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 1384343, 2768686, 5537372, 11074744, 22149488, 26302517, 52605034, 105210068, 210420136, 420840272]

約数ペア:

[(1, 420840272), (2, 210420136), (4, 105210068), (8, 52605034), (16, 26302517), (19, 22149488), (38, 11074744), (76, 5537372), (152, 2768686), (304, 1384343)]