66563360

素因数分解:

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

素因数の和:1305

約数の個数: 48

約数和(自身を含む): 157743936

約数和(自身を除く): 91180576

約数列:

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

約数ペア:

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