1640804672

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{1972121}}^1$

素因数の和:1972146

約数の個数: 28

約数和(自身を含む): 3506432916

約数和(自身を除く): 1865628244

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 1972121, 3944242, 7888484, 15776968, 25637573, 31553936, 51275146, 63107872, 102550292, 126215744, 205100584, 410201168, 820402336, 1640804672]

約数ペア:

[(1, 1640804672), (2, 820402336), (4, 410201168), (8, 205100584), (13, 126215744), (16, 102550292), (26, 63107872), (32, 51275146), (52, 31553936), (64, 25637573), (104, 15776968), (208, 7888484), (416, 3944242), (832, 1972121)]