128560840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{169159}}^1$

素因数の和:169189

約数の個数: 32

約数和(自身を含む): 304488000

約数和(自身を除く): 175927160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 169159, 338318, 676636, 845795, 1353272, 1691590, 3214021, 3383180, 6428042, 6766360, 12856084, 16070105, 25712168, 32140210, 64280420, 128560840]

約数ペア:

[(1, 128560840), (2, 64280420), (4, 32140210), (5, 25712168), (8, 16070105), (10, 12856084), (19, 6766360), (20, 6428042), (38, 3383180), (40, 3214021), (76, 1691590), (95, 1353272), (152, 845795), (190, 676636), (380, 338318), (760, 169159)]