20161891614976

素因数分解:

$2^8\times {\mathrm{78757389121}}^1$

素因数の和:78757389137

約数の個数: 18

約数和(自身を含む): 40245025841342

約数和(自身を除く): 20083134226366

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 78757389121, 157514778242, 315029556484, 630059112968, 1260118225936, 2520236451872, 5040472903744, 10080945807488, 20161891614976]

約数ペア:

[(1, 20161891614976), (2, 10080945807488), (4, 5040472903744), (8, 2520236451872), (16, 1260118225936), (32, 630059112968), (64, 315029556484), (128, 157514778242), (256, 78757389121)]