39996416

素因数分解:

$2^{10}\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:440

約数の個数: 44

約数和(自身を含む): 80815560

約数和(自身を除く): 40819144

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 139, 256, 278, 281, 512, 556, 562, 1024, 1112, 1124, 2224, 2248, 4448, 4496, 8896, 8992, 17792, 17984, 35584, 35968, 39059, 71168, 71936, 78118, 142336, 143872, 156236, 287744, 312472, 624944, 1249888, 2499776, 4999552, 9999104, 19998208, 39996416]

約数ペア:

[(1, 39996416), (2, 19998208), (4, 9999104), (8, 4999552), (16, 2499776), (32, 1249888), (64, 624944), (128, 312472), (139, 287744), (256, 156236), (278, 143872), (281, 142336), (512, 78118), (556, 71936), (562, 71168), (1024, 39059), (1112, 35968), (1124, 35584), (2224, 17984), (2248, 17792), (4448, 8992), (4496, 8896)]