161568256

素因数分解:

$2^9\times {\mathrm{281}}^1\times {\mathrm{1123}}^1$

素因数の和:1422

約数の個数: 40

約数和(自身を含む): 324258264

約数和(自身を除く): 162690008

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 281, 512, 562, 1123, 1124, 2246, 2248, 4492, 4496, 8984, 8992, 17968, 17984, 35936, 35968, 71872, 71936, 143744, 143872, 287488, 315563, 574976, 631126, 1262252, 2524504, 5049008, 10098016, 20196032, 40392064, 80784128, 161568256]

約数ペア:

[(1, 161568256), (2, 80784128), (4, 40392064), (8, 20196032), (16, 10098016), (32, 5049008), (64, 2524504), (128, 1262252), (256, 631126), (281, 574976), (512, 315563), (562, 287488), (1123, 143872), (1124, 143744), (2246, 71936), (2248, 71872), (4492, 35968), (4496, 35936), (8984, 17984), (8992, 17968)]