78840780136

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{518689343}}^1$

素因数の和:518689368

約数の個数: 16

約数和(自身を含む): 155606803200

約数和(自身を除く): 76766023064

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 518689343, 1037378686, 2074757372, 4149514744, 9855097517, 19710195034, 39420390068, 78840780136]

約数ペア:

[(1, 78840780136), (2, 39420390068), (4, 19710195034), (8, 9855097517), (19, 4149514744), (38, 2074757372), (76, 1037378686), (152, 518689343)]