20605936

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{631}}^1$

素因数の和:809

約数の個数: 40

約数和(自身を含む): 43337504

約数和(自身を除く): 22731568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 157, 208, 314, 628, 631, 1256, 1262, 2041, 2512, 2524, 4082, 5048, 8164, 8203, 10096, 16328, 16406, 32656, 32812, 65624, 99067, 131248, 198134, 396268, 792536, 1287871, 1585072, 2575742, 5151484, 10302968, 20605936]

約数ペア:

[(1, 20605936), (2, 10302968), (4, 5151484), (8, 2575742), (13, 1585072), (16, 1287871), (26, 792536), (52, 396268), (104, 198134), (157, 131248), (208, 99067), (314, 65624), (628, 32812), (631, 32656), (1256, 16406), (1262, 16328), (2041, 10096), (2512, 8203), (2524, 8164), (4082, 5048)]