205718900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{89443}}^1$

素因数の和:89480

約数の個数: 36

約数和(自身を含む): 465824352

約数和(自身を除く): 260105452

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 230, 460, 575, 1150, 2300, 89443, 178886, 357772, 447215, 894430, 1788860, 2057189, 2236075, 4114378, 4472150, 8228756, 8944300, 10285945, 20571890, 41143780, 51429725, 102859450, 205718900]

約数ペア:

[(1, 205718900), (2, 102859450), (4, 51429725), (5, 41143780), (10, 20571890), (20, 10285945), (23, 8944300), (25, 8228756), (46, 4472150), (50, 4114378), (92, 2236075), (100, 2057189), (115, 1788860), (230, 894430), (460, 447215), (575, 357772), (1150, 178886), (2300, 89443)]