1990668832

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{30781}}^1$

素因数の和:30881

約数の個数: 48

約数和(自身を含む): 4095729792

約数和(自身を除く): 2105060960

約数列:

[1, 2, 4, 8, 16, 32, 43, 47, 86, 94, 172, 188, 344, 376, 688, 752, 1376, 1504, 2021, 4042, 8084, 16168, 30781, 32336, 61562, 64672, 123124, 246248, 492496, 984992, 1323583, 1446707, 2647166, 2893414, 5294332, 5786828, 10588664, 11573656, 21177328, 23147312, 42354656, 46294624, 62208401, 124416802, 248833604, 497667208, 995334416, 1990668832]

約数ペア:

[(1, 1990668832), (2, 995334416), (4, 497667208), (8, 248833604), (16, 124416802), (32, 62208401), (43, 46294624), (47, 42354656), (86, 23147312), (94, 21177328), (172, 11573656), (188, 10588664), (344, 5786828), (376, 5294332), (688, 2893414), (752, 2647166), (1376, 1446707), (1504, 1323583), (2021, 984992), (4042, 492496), (8084, 246248), (16168, 123124), (30781, 64672), (32336, 61562)]