38867560

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1979}}^1$

素因数の和:2481

約数の個数: 32

約数和(自身を含む): 87674400

約数和(自身を除く): 48806840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 1979, 2455, 3928, 3958, 4910, 7916, 9820, 9895, 15832, 19640, 19790, 39580, 79160, 971689, 1943378, 3886756, 4858445, 7773512, 9716890, 19433780, 38867560]

約数ペア:

[(1, 38867560), (2, 19433780), (4, 9716890), (5, 7773512), (8, 4858445), (10, 3886756), (20, 1943378), (40, 971689), (491, 79160), (982, 39580), (1964, 19790), (1979, 19640), (2455, 15832), (3928, 9895), (3958, 9820), (4910, 7916)]