166538420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{438259}}^1$

素因数の和:438287

約数の個数: 24

約数和(自身を含む): 368138400

約数和(自身を除く): 201599980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 438259, 876518, 1753036, 2191295, 4382590, 8326921, 8765180, 16653842, 33307684, 41634605, 83269210, 166538420]

約数ペア:

[(1, 166538420), (2, 83269210), (4, 41634605), (5, 33307684), (10, 16653842), (19, 8765180), (20, 8326921), (38, 4382590), (76, 2191295), (95, 1753036), (190, 876518), (380, 438259)]