20148752

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{617}}^1$

素因数の和:795

約数の個数: 40

約数和(自身を含む): 42377496

約数和(自身を除く): 22228744

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 157, 208, 314, 617, 628, 1234, 1256, 2041, 2468, 2512, 4082, 4936, 8021, 8164, 9872, 16042, 16328, 32084, 32656, 64168, 96869, 128336, 193738, 387476, 774952, 1259297, 1549904, 2518594, 5037188, 10074376, 20148752]

約数ペア:

[(1, 20148752), (2, 10074376), (4, 5037188), (8, 2518594), (13, 1549904), (16, 1259297), (26, 774952), (52, 387476), (104, 193738), (157, 128336), (208, 96869), (314, 64168), (617, 32656), (628, 32084), (1234, 16328), (1256, 16042), (2041, 9872), (2468, 8164), (2512, 8021), (4082, 4936)]