388049440

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{9437}}^1$

素因数の和:9709

約数の個数: 48

約数和(自身を含む): 920431512

約数和(自身を除く): 532382072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 8224, 9437, 10280, 18874, 20560, 37748, 41120, 47185, 75496, 94370, 150992, 188740, 301984, 377480, 754960, 1509920, 2425309, 4850618, 9701236, 12126545, 19402472, 24253090, 38804944, 48506180, 77609888, 97012360, 194024720, 388049440]

約数ペア:

[(1, 388049440), (2, 194024720), (4, 97012360), (5, 77609888), (8, 48506180), (10, 38804944), (16, 24253090), (20, 19402472), (32, 12126545), (40, 9701236), (80, 4850618), (160, 2425309), (257, 1509920), (514, 754960), (1028, 377480), (1285, 301984), (2056, 188740), (2570, 150992), (4112, 94370), (5140, 75496), (8224, 47185), (9437, 41120), (10280, 37748), (18874, 20560)]