8458420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{22259}}^1$

素因数の和:22287

約数の個数: 24

約数和(自身を含む): 18698400

約数和(自身を除く): 10239980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 22259, 44518, 89036, 111295, 222590, 422921, 445180, 845842, 1691684, 2114605, 4229210, 8458420]

約数ペア:

[(1, 8458420), (2, 4229210), (4, 2114605), (5, 1691684), (10, 845842), (19, 445180), (20, 422921), (38, 222590), (76, 111295), (95, 89036), (190, 44518), (380, 22259)]