87656840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{317}}^1$

素因数の和:582

約数の個数: 64

約数和(自身を含む): 205148160

約数和(自身を除く): 117491320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 223, 248, 310, 317, 446, 620, 634, 892, 1115, 1240, 1268, 1585, 1784, 2230, 2536, 3170, 4460, 6340, 6913, 8920, 9827, 12680, 13826, 19654, 27652, 34565, 39308, 49135, 55304, 69130, 70691, 78616, 98270, 138260, 141382, 196540, 276520, 282764, 353455, 393080, 565528, 706910, 1413820, 2191421, 2827640, 4382842, 8765684, 10957105, 17531368, 21914210, 43828420, 87656840]

約数ペア:

[(1, 87656840), (2, 43828420), (4, 21914210), (5, 17531368), (8, 10957105), (10, 8765684), (20, 4382842), (31, 2827640), (40, 2191421), (62, 1413820), (124, 706910), (155, 565528), (223, 393080), (248, 353455), (310, 282764), (317, 276520), (446, 196540), (620, 141382), (634, 138260), (892, 98270), (1115, 78616), (1240, 70691), (1268, 69130), (1585, 55304), (1784, 49135), (2230, 39308), (2536, 34565), (3170, 27652), (4460, 19654), (6340, 13826), (6913, 12680), (8920, 9827)]