133126720

素因数分解:

$2^6\times 5^1\times {\mathrm{643}}^1\times {\mathrm{647}}^1$

素因数の和:1307

約数の個数: 56

約数和(自身を含む): 317991744

約数和(自身を除く): 184865024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 643, 647, 1286, 1294, 2572, 2588, 3215, 3235, 5144, 5176, 6430, 6470, 10288, 10352, 12860, 12940, 20576, 20704, 25720, 25880, 41152, 41408, 51440, 51760, 102880, 103520, 205760, 207040, 416021, 832042, 1664084, 2080105, 3328168, 4160210, 6656336, 8320420, 13312672, 16640840, 26625344, 33281680, 66563360, 133126720]

約数ペア:

[(1, 133126720), (2, 66563360), (4, 33281680), (5, 26625344), (8, 16640840), (10, 13312672), (16, 8320420), (20, 6656336), (32, 4160210), (40, 3328168), (64, 2080105), (80, 1664084), (160, 832042), (320, 416021), (643, 207040), (647, 205760), (1286, 103520), (1294, 102880), (2572, 51760), (2588, 51440), (3215, 41408), (3235, 41152), (5144, 25880), (5176, 25720), (6430, 20704), (6470, 20576), (10288, 12940), (10352, 12860)]