215538880

素因数分解:

$2^6\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1019}}^1$

素因数の和:1697

約数の個数: 56

約数和(自身を含む): 514532880

約数和(自身を除く): 298994000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 661, 1019, 1322, 2038, 2644, 3305, 4076, 5095, 5288, 6610, 8152, 10190, 10576, 13220, 16304, 20380, 21152, 26440, 32608, 40760, 42304, 52880, 65216, 81520, 105760, 163040, 211520, 326080, 673559, 1347118, 2694236, 3367795, 5388472, 6735590, 10776944, 13471180, 21553888, 26942360, 43107776, 53884720, 107769440, 215538880]

約数ペア:

[(1, 215538880), (2, 107769440), (4, 53884720), (5, 43107776), (8, 26942360), (10, 21553888), (16, 13471180), (20, 10776944), (32, 6735590), (40, 5388472), (64, 3367795), (80, 2694236), (160, 1347118), (320, 673559), (661, 326080), (1019, 211520), (1322, 163040), (2038, 105760), (2644, 81520), (3305, 65216), (4076, 52880), (5095, 42304), (5288, 40760), (6610, 32608), (8152, 26440), (10190, 21152), (10576, 20380), (13220, 16304)]